The German share price index DAX graph is pictured at the stock exchange in Frankfurt, Germany, May 25, 2020. REUTERS/Staff

People wearing protective face masks walk next to a Huawei advertisement and an Apple store in Shanghai following an outbreak of the novel coronavirus disease (COVID-19), in Shanghai, China May 25, 2020. REUTERS/Aly Song

A man wearing a mask checks his mobile phone at a shopping district amid the coronavirus disease (COVID-19) outbreak in Tokyo, Japan, May 25, 2020. REUTERS/Kim Kyung-Hoon

A woman wearing a protective face mask walks past a luxury brand store at a shopping district amid the coronavirus disease (COVID-19) outbreak in Tokyo, Japan, May 25, 2020. REUTERS/Kim Kyung-Hoon

People wearing protective face masks wait to cross a street at a shopping district amid the coronavirus disease (COVID-19) outbreak in Tokyo, Japan, May 25, 2020. REUTERS/Kim Kyung-Hoon

Law enforcement officers are seen near a bank branch after an unidentified man reportedly took hostages, in Moscow, Russia May 23, 2020. REUTERS/Tatyana Makeyeva

Law enforcement officers are seen near a bank branch after an unidentified man reportedly took hostages, in Moscow, Russia May 23, 2020. REUTERS/Tatyana Makeyeva

Traders from Cuttone & Company make preparations on the floor for the return to trading at the New York Stock Exchange (NYSE) in New York, U.S., May 22, 2020. REUTERS/Brendan McDermid

A nearly empty trading floor is seen as preparations are made for the return to trading at the New York Stock Exchange (NYSE) in New York, U.S., May 22, 2020. REUTERS/Brendan McDermid

A nearly empty trading floor is seen as preparations are made for the return to trading at the New York Stock Exchange (NYSE) in New York, U.S., May 22, 2020. REUTERS/Brendan McDermid

Dividers are seen inside a trading post on the trading floor as preparations are made for the return to trading at the New York Stock Exchange (NYSE) in New York, U.S., May 22, 2020. REUTERS/Brendan McDermid

Dividers are seen inside a trading post on the trading floor as preparations are made for the return to trading at the New York Stock Exchange (NYSE) in New York, U.S., May 22, 2020. REUTERS/Brendan McDermid

A staff member rings closing bell in honor of Memorial Day and the lives lost in military service to the U.S., as preparations are made for the return to trading, on the floor at the New York Stock Exchange (NYSE) in New York, U.S., May 22, 2020. REUTERS/Brendan McDermid TPX IMAGES OF THE DAY

A staff member rings closing bell in honor of Memorial Day and the lives lost in military service to the U.S., as preparations are made for the return to trading, on the floor at the New York Stock Exchange (NYSE) in New York, U.S., May 22, 2020. REUTERS/Brendan McDermid

Workers celebrate the during closing bell, as they prepare for the return to trading, on the floor at the New York Stock Exchange (NYSE) in New York, U.S., May 22, 2020. REUTERS/Brendan McDermid

A nearly empty trading floor is seen as preparations are made for the return to trading at the New York Stock Exchange (NYSE) in New York, U.S., May 22, 2020. REUTERS/Brendan McDermid

A nearly empty trading floor is seen as preparations are made for the return to trading at the New York Stock Exchange (NYSE) in New York, U.S., May 22, 2020. REUTERS/Brendan McDermid

A nearly empty trading floor is seen as preparations are made for the return to trading at the New York Stock Exchange (NYSE) in New York, U.S., May 22, 2020. REUTERS/Brendan McDermid

A staff member works at a trader station as preparations are made for the return to trading at the New York Stock Exchange (NYSE) in New York, U.S., May 22, 2020. REUTERS/Brendan McDermid

A nearly empty trading floor is seen as preparations are made for the return to trading at the New York Stock Exchange (NYSE) in New York, U.S., May 22, 2020. REUTERS/Brendan McDermid

A nearly empty trading floor is seen as preparations are made for the return to trading at the New York Stock Exchange (NYSE) in New York, U.S., May 22, 2020. REUTERS/Brendan McDermid

The German share price index DAX graph is pictured at the stock exchange in Frankfurt, Germany, May 22, 2020. REUTERS/Staff

Coffee packets are seen on the shelves of a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

L'or and Douwe Egberts coffee packets are seen at a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

Coffee packets are seen on shelves of a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

Douwe Egberts and Senseo coffee packets are seen at a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

Douwe Egberts and Senseo coffee packets are seen at a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

L'or coffee packets are seen at a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

Lavazza coffee packets are seen at a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

Douwe Egberts coffee packets are seen at a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

Coffee packets are seen at a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

Douwe Egberts coffee packets are seen at a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

A foreign domestic worker cleans window blinds in Beirut, Lebanon, May 21, 2020. Picture taken May 21, 2020. REUTERS/Mohamed Azakir

Women walk along a street in Dora, Lebanon, May 20, 2020. Picture taken May 20, 2020. REUTERS/Mohamed Azakir

Migrant workers from Bangladesh, working for waste management company RAMCO, pray at a company facility where they also live, in Biakout, near Beirut, Lebanon, May 20, 2020. Picture taken May 20, 2020. REUTERS/Mohamed Azakir

Women wearing face masks look at luggage displayed for sale amid concerns over the spread of the coronavirus disease (COVID-19), in Dora, Lebanon, May 20, 2020. Picture taken May 20, 2020. REUTERS/Mohamed Azakir

Migrant workers from Bangladesh, working for waste management company RAMCO, prepare to pray at a company facility where they also live in Biakout, near Beirut, Lebanon, May 20, 2020. Picture taken May 20, 2020. REUTERS/Mohamed Azakir

Migrant workers from Bangladesh, working for waste management company RAMCO, gather inside their dormitory at a company facility in Biakout, near Beirut, Lebanon, May 20, 2020. Picture taken May 20, 2020. REUTERS/Mohamed Azakir

A migrant worker from Bangladesh, who works for waste management company RAMCO, sits inside his dormitory at a company facility in Biakout, near Beirut, Lebanon, May 20, 2020. Picture taken May 20, 2020. REUTERS/Mohamed Azakir

Migrant workers from Bangladesh wearing face masks sit on the street amid concerns over the spread of the coronavirus (COVID-19), in Dora, Lebanon, May 19, 2020. Picture taken May 19, 2020. REUTERS/Mohamed Azakir

A migrant worker from Bangladesh, who works for waste management company RAMCO, sweeps a street in Jdeideh, near Beirut, Lebanon, May 19, 2020. Picture taken May 19, 2020. REUTERS/Mohamed Azakir

Bangladeshi trash collectors, working for waste management company RAMCO, empty bins in Jdeideh, near Beirut, Lebanon, May 19, 2020. Picture taken May 19, 2020. REUTERS/Mohamed Azakir

A woman walks past a panel displaying the afternoon trading Hang Seng Index, after Beijing's plans to impose national security legislation in Hong Kong, China May 22, 2020. REUTERS/Tyrone Siu

A woman stands in front of a panel displaying the afternoon trading Hang Seng Index, after Beijing's plans to impose national security legislation in Hong Kong, China May 22, 2020. REUTERS/Tyrone Siu

A woman wearing protective face mask walks at Lujiazui financial district on the opening day of the National People's Congress (NPC), in Pudong, Shanghai, China May 22, 2020. REUTERS/Aly Song

People wearing protective face masks walk at Lujiazui financial district on the opening day of the National People's Congress (NPC), in Pudong, Shanghai, China May 22, 2020. REUTERS/Aly Song

People wearing protective face masks walk at Lujiazui financial district on the opening day of the National People's Congress (NPC), in Pudong, Shanghai, China May 22, 2020. REUTERS/Aly Song

A Chinese flag is pictured at Lujiazui financial district in Pudong, Shanghai, China May 22, 2020. REUTERS/Aly Song

A view of signage outside the headquarters of Bank of Japan amid the coronavirus disease (COVID-19) outbreak in Tokyo, Japan, May 22, 2020.REUTERS/Kim Kyung-Hoon

Traffic signs are seen in front of the headquarters of Bank of Japan amid the coronavirus disease (COVID-19) outbreak in Tokyo, Japan, May 22, 2020.REUTERS/Kim Kyung-Hoon

Traffic signs are seen in front of the headquarters of Bank of Japan amid the coronavirus disease (COVID-19) outbreak in Tokyo, Japan, May 22, 2020.REUTERS/Kim Kyung-Hoon

A policeman stands guard in front of the headquarters of Bank of Japan amid the coronavirus disease (COVID-19) outbreak in Tokyo, Japan, May 22, 2020.REUTERS/Kim Kyung-Hoon

A man wearing a protective mask walks past the headquarters of Bank of Japan amid the coronavirus disease (COVID-19) outbreak in Tokyo, Japan, May 22, 2020.REUTERS/Kim Kyung-Hoon

A man wearing a protective mask stands in front of the headquarters of Bank of Japan amid the coronavirus disease (COVID-19) outbreak in Tokyo, Japan, May 22, 2020.REUTERS/Kim Kyung-Hoon

A man wearing a protective mask walks past the headquarters of Bank of Japan amid the coronavirus disease (COVID-19) outbreak in Tokyo, Japan, May 22, 2020.REUTERS/Kim Kyung-Hoon

A woman wearing a protective mask and musicians perform, as the parliament building is seen in the background, during a protest in demand of state aid to mitigate financial losses of artists due to the coronavirus disease (COVID-19) outbreak, in Athens, Greece May 21, 2020. REUTERS/Alkis Konstantinidis

Musicians perform during a protest in demand of state aid to mitigate financial losses of artists due to the coronavirus disease (COVID-19) outbreak, in Athens, Greece May 21, 2020. REUTERS/Alkis Konstantinidis

Musicians perform, as the parliament building is seen in the background, during a protest in demand of state aid to mitigate financial losses of artists due to the coronavirus disease (COVID-19) outbreak, in Athens, Greece May 21, 2020. REUTERS/Alkis Konstantinidis

Musicians perform during a protest in demand of state aid to mitigate financial losses of artists due to the coronavirus disease (COVID-19) outbreak, in Athens, Greece May 21, 2020. REUTERS/Alkis Konstantinidis

A musician performs during a protest in demand of state aid to mitigate financial losses of artists due to the coronavirus disease (COVID-19) outbreak, in Athens, Greece May 21, 2020. REUTERS/Alkis Konstantinidis