The logo of Swiss bank Credit Suisse is seen in front of an office building in Zurich, Switzerland October 26, 2022. REUTERS/Arnd Wiegmann 

The logo of Swiss bank UBS is seen at an office building in Zurich, Switzerland October 25, 2022. REUTERS/Arnd Wiegmann 

The logo of Swiss bank UBS is seen at its headquarters in Zurich, Switzerland October 25, 2022. REUTERS/Arnd Wiegmann 

The logo of Swiss bank UBS is seen at an office building in Zurich, Switzerland October 25, 2022. REUTERS/Arnd Wiegmann 

Workers of the Strategic Heritage Plan (SHP) remove a scaffolding on the building of the United Nations European headquarters in Geneva, Switzerland, October 7 2022. REUTERS/Denis Balibouse 

Workers of the Strategic Heritage Plan (SHP) remove a scaffolding on the building of the United Nations European headquarters in Geneva, Switzerland, October 7 2022. REUTERS/Denis Balibouse 

Workers of the Strategic Heritage Plan (SHP) remove a scaffolding on the building of the United Nations European headquarters in Geneva, Switzerland, October 7 2022. REUTERS/Denis Balibouse 

Workers of the Strategic Heritage Plan (SHP) remove a scaffolding on the building of the United Nations European headquarters in Geneva, Switzerland, October 7 2022. REUTERS/Denis Balibouse 

Switzerland's national flag and the European Union flag fly on a balcony at a residential building in Zurich, Switzerland October 6, 2022. REUTERS/Arnd Wiegmann 

Switzerland's national flag flies in front of a balcony at a residential building in Zurich, Switzerland October 6, 2022. REUTERS/Arnd Wiegmann 

The building of the Swiss National Bank is seen in Zurich, September 22, 2022. REUTERS/Arnd Wiegmann 

A crane is seen beside the building of the Swiss National Bank in Zurich, September 22, 2022. REUTERS/Arnd Wiegmann 

The building of the Swiss National Bank is seen in Zurich, September 22, 2022. REUTERS/Arnd Wiegmann 

The building of the Swiss National Bank is seen in Zurich, September 22, 2022. REUTERS/Arnd Wiegmann 

The flag of the European Union and Ukraine's national flag fly at a building in Bern, Switzerland September 19, 2022. REUTERS/Arnd Wiegmann 

The logo of Swiss bank Credit Suisse is seen at an office building in Zurich, Switzerland September 2, 2022. REUTERS/Arnd Wiegmann 

The logo of Swiss bank Credit Suisse is seen at an office building in Zurich, Switzerland September 2, 2022. REUTERS/Arnd Wiegmann 

The logo of Swiss bank Credit Suisse is seen at an office building in Zurich, Switzerland September 2, 2022. REUTERS/Arnd Wiegmann 

Electricity power lines are pictured in Dorenaz, Switzerland, August 29, 2022. REUTERS/Denis Balibouse 

Electricity power lines and a windmill turbine are pictured in Dorenaz, Switzerland, August 29, 2022. REUTERS/Denis Balibouse 

Israeli President Isaac Herzog addresses a gala event on occasion of the 125th anniversary of the First Zionist Congress at the original venue, the Stadtcasino Basel, in Basel, Switzerland August 29, 2022. REUTERS/Arnd Wiegmann 

People arrive for a gala event on occasion of the 125th anniversary of the First Zionist Congress at the original venue, the Stadtcasino Basel, in Basel, Switzerland August 29, 2022. REUTERS/Arnd Wiegmann 

A view of an axel of the pump turbine in the newly operational Nant de Drance pumped storage electricity power plant in Finhaut, Switzerland, August 4, 2022. REUTERS/Denis Balibouse 

Alain Sauthier, Director of Nant de Drance talks to a journalist above the main inlet valve of the penstock in the newly operational Nant de Drance pumped storage electricity power plant in Finhaut, Switzerland, August 4, 2022. REUTERS/Denis Balibouse 

Turbines are seen in power house of the newly operational Nant de Drance pumped storage electricity power plant in Finhaut, Switzerland, August 4, 2022. REUTERS/Denis Balibouse 

The main spherical valve is pictured underneath the turbine in the newly operational Nant de Drance pumped storage electricity power plant in Finhaut, Switzerland, August 4, 2022. REUTERS/Denis Balibouse 

Turbines are seen in power house of the newly operational Nant de Drance pumped storage electricity power plant in Finhaut, Switzerland, August 4, 2022. REUTERS/Denis Balibouse 

Turbines are seen in power house of the newly operational Nant de Drance pumped storage electricity power plant in Finhaut, Switzerland, August 4, 2022. REUTERS/Denis Balibouse 

A man jumps during sunny weather from a bridge into the Limmat river in Zurich, Switzerland August 4, 2022. REUTERS/Arnd Wiegmann 

People relax around a public fountain in Zurich, Switzerland August 4, 2022. REUTERS/Arnd Wiegmann 

Bachir Heybach makes a handstand before he jumps to cool off into the Limmat river in Zurich, Switzerland August 4, 2022. REUTERS/Arnd Wiegmann 

People relax during sunny weather on the Saffa island in Lake Zurich in Zurich, Switzerland August 4, 2022. REUTERS/Arnd Wiegmann 

A general view shows Lake Lugano and the city of Lugano, Switzerland July 3, 2022. REUTERS/Arnd Wiegmann 

A general view shows Lake Lugano, Monte Bre mountain and the city of Lugano, Switzerland July 3, 2022. REUTERS/Arnd Wiegmann 

Women pass the cylindrical Hirshhorn Museum, draped in Swiss artist Nicolas Party's newest work "Draw the Curtain" that wraps 360 degrees around the temporary scaffolding that encases the building, on a rainy day along the National Mall in Washington, U.S., June 27, 2022. REUTERS/Kevin Lamarque 

A view shows the logo of Koenig & Bauer Banknote Solutions on the building, in Lausanne, Switzerland, June 23, 2022. REUTERS/Denis Balibouse 

A view shows the logo of Koenig & Bauer Banknote Solutions on the building, in Lausanne, Switzerland, June 23, 2022. REUTERS/Denis Balibouse 

A general view shows the building of the Swiss National Bank (SNB) in Zurich, Switzerland June 23, 2022. Picture taken with a drone. REUTERS/Arnd Wiegmann 

A general view shows the building of the Swiss National Bank (SNB) in Zurich, Switzerland June 23, 2022. Picture taken with a drone. REUTERS/Arnd Wiegmann 

The building of the Swiss National Bank (SNB) is pictured in Bern, Switzerland June 16, 2022. REUTERS/Arnd Wiegmann 

The Swiss National Bank (SNB) logo is pictured on its building in Bern, Switzerland June 16, 2022. REUTERS/Arnd Wiegmann 

A logo of Swiss Skyguide air navigation service providers is seen in front of their building in Duebendorf, Switzerland June 15, 2022. REUTERS/Arnd Wiegmann 

A logo of Swiss Skyguide air navigation service providers is seen in front of their building in Duebendorf, Switzerland June 15, 2022. REUTERS/Arnd Wiegmann 

A flag of Swiss Skyguide air navigation service providers flies in front of their building in Duebendorf, Switzerland June 15, 2022. REUTERS/Arnd Wiegmann 

A logo of Swiss Skyguide air navigation service providers is seen in front of their building in Duebendorf, Switzerland June 15, 2022. REUTERS/Arnd Wiegmann 

Police officers enter the Swiss Federal Criminal Court (Bundesstrafgericht) building in Bellinzona, Switzerland June 8, 2022. REUTERS/Arnd Wiegmann 

A general view shows Gartenhochhaus Aglaya garden apartment tower at the Areal Suurstoffi, a district of traffic-free neighbourhood combining living, working and leisure activities, in Risch-Rotkreuz, Switzerland May 18, 2022. REUTERS/Arnd Wiegmann 

A general view shows Gartenhochhaus Aglaya garden apartment tower at the Areal Suurstoffi, a district of traffic-free neighbourhood combining living, working and leisure activities, in Risch-Rotkreuz, Switzerland May 18, 2022. REUTERS/Arnd Wiegmann 

Plants are seen at the balconies of the Gartenhochhaus Aglaya garden apartment tower at the Areal Suurstoffi, a district of traffic-free neighbourhood combining living, working and leisure activities, in Risch-Rotkreuz, Switzerland May 18, 2022. REUTERS/Arnd Wiegmann 

Plants are seen at the balconies of the Gartenhochhaus Aglaya garden apartment tower at the Areal Suurstoffi, a district of traffic-free neighbourhood combining living, working and leisure activities, in Risch-Rotkreuz, Switzerland May 18, 2022. REUTERS/Arnd Wiegmann 

A general view shows Gartenhochhaus Aglaya garden apartment tower at the Areal Suurstoffi, a district of traffic-free neighbourhood combining living, working and leisure activities, in Risch-Rotkreuz, Switzerland May 18, 2022. REUTERS/Arnd Wiegmann 

Swiss soldiers build fences ahead of the upcoming World Economic Forum 2022 (WEF) in the Alpine resort of Davos, Switzerland May 11, 2022. Picture taken May 11, 2022. REUTERS/Arnd Wiegmann 

Swiss soldiers build fences ahead of the upcoming World Economic Forum 2022 (WEF) in the Alpine resort of Davos, Switzerland May 11, 2022. Picture taken May 11, 2022. REUTERS/Arnd Wiegmann 

Swiss soldiers build fences in front of the Kongress Hotel Davos ahead of the upcoming World Economic Forum 2022 (WEF) in the Alpine resort of Davos, Switzerland May 11, 2022. Picture taken May 11, 2022. Picture taken with a drone. REUTERS/Arnd Wiegmann 

Swiss soldiers build fences ahead of the upcoming World Economic Forum 2022 (WEF) in the Alpine resort of Davos, Switzerland May 11, 2022. Picture taken May 11, 2022. REUTERS/Arnd Wiegmann 

Swiss soldiers build fences in front of the Kongress Hotel Davos ahead of the upcoming World Economic Forum 2022 (WEF) in the Alpine resort of Davos, Switzerland May 11, 2022. Picture taken May 11, 2022. Picture taken with a drone. REUTERS/Arnd Wiegmann 

A banner of an action called ZAD Geissberg flies on a tree as climate activists try to build tree houses to protest against a planned forest clearance for the expansion of a quarry of Swiss cement maker Holcim near Remigen, Switzerland April 3, 2022. REUTERS/Arnd Wiegmann 

The Swiss National Bank (SNB) logo is pictured on its building in Bern, Switzerland April 2, 2022. REUTERS/Arnd Wiegmann 

The name of commodity trader Sber Trading Swiss AG is seen at the entrance of an office building in Zug, Switzerland March 28, 2022. REUTERS/Arnd Wiegmann 

A worker sprays water while an excavator demolishes a residential building to create a new construction site in Zurich, Switzerland March 25, 2022. REUTERS/Arnd Wiegmann