Bulgarian Alexander Angelov, 27, reaches to open the door of an elevator outside his apartment in a block in the town of Vratsa, some 110 km (68 miles) north of Sofia, April 10, 2013. Vratsa, in the poorest part of the European Union's poorest country, is a microcosm of the challenges facing whoever wins a national election on May 12. More than two million people have left Bulgaria since the fall of communism, and protesters have taken to the streets to complain about low wages, high bills and deep-seated corruption and to demand more spending to help the economy recover from a deep recession. Picture taken on April 10, 2013. To match story BULGARIA-JOBLESS REUTERS/Stoyan Nenov (BULGARIA - Tags: BUSINESS EMPLOYMENT POLITICS SOCIETY) 

A man looks at a list with job vacancies posted at the entrance of an employment agency in the town of Vratsa, some 110km (68 miles) north of Sofia, April 10, 2013. Vratsa, in the poorest part of the European Union's poorest country, is a microcosm of the challenges facing whoever wins a national election on May 12. More than two million people have left Bulgaria since the fall of communism, and protesters have taken to the streets to complain about low wages, high bills and deep-seated corruption and to demand more spending to help the economy recover from a deep recession. Picture taken on April 10, 2013. To match story BULGARIA-JOBLESS REUTERS/Stoyan Nenov (BULGARIA - Tags: BUSINESS EMPLOYMENT POLITICS SOCIETY) 

Bulgarian Alexander Angelov, 27, looks on as he stands outside his apartment in a block in the town of Vratsa, some 110km (68 miles) north of Sofia, April 10, 2013. Vratsa, in the poorest part of the European Union's poorest country, is a microcosm of the challenges facing whoever wins a national election on May 12. More than two million people have left Bulgaria since the fall of communism, and protesters have taken to the streets to complain about low wages, high bills and deep-seated corruption and to demand more spending to help the economy recover from a deep recession. Picture taken on April 10, 2013. To match story BULGARIA-JOBLESS REUTERS/Stoyan Nenov (BULGARIA - Tags: BUSINESS EMPLOYMENT POLITICS SOCIETY) 

Bulgarian Radostina Petkova, 21, partner of Alexander Angelov works on her laptop inside the living room of their apartment in the town of Vratsa, some 110 km (68 miles) north of Sofia, April 10, 2013. Vratsa, in the poorest part of the European Union's poorest country, is a microcosm of the challenges facing whoever wins a national election on May 12. More than two million people have left Bulgaria since the fall of communism, and protesters have taken to the streets to complain about low wages, high bills and deep-seated corruption and to demand more spending to help the economy recover from a deep recession. Picture taken on April 10, 2013. To match story BULGARIA-JOBLESS/ REUTERS/Stoyan Nenov (BULGARIA - Tags: BUSINESS EMPLOYMENT POLITICS SOCIETY) 

Bulgarian Radostina Petkova, 21, and her partner Alexander Angelov, 27, chat inside the kitchen of their apartment in the town of Vratsa, some 110 km (68 miles) north of Sofia, April 10, 2013. Vratsa, in the poorest part of the European Union's poorest country, is a microcosm of the challenges facing whoever wins a national election on May 12. More than two million people have left Bulgaria since the fall of communism, and protesters have taken to the streets to complain about low wages, high bills and deep-seated corruption and to demand more spending to help the economy recover from a deep recession. Picture taken on April 10, 2013. To match story BULGARIA-JOBLESS/ REUTERS/Stoyan Nenov (BULGARIA - Tags: BUSINESS EMPLOYMENT POLITICS SOCIETY) 

Bulgarian Radostina Petkova, 21, partner of Alexander Angelov works on her laptop inside the living room of their apartment in the town of Vratsa, some 110 km (68 miles) north of Sofia, April 10, 2013. Vratsa, in the poorest part of the European Union's poorest country, is a microcosm of the challenges facing whoever wins a national election on May 12. More than two million people have left Bulgaria since the fall of communism, and protesters have taken to the streets to complain about low wages, high bills and deep-seated corruption and to demand more spending to help the economy recover from a deep recession. Picture taken on April 10, 2013. To match story BULGARIA-JOBLESS/ REUTERS/Stoyan Nenov (BULGARIA - Tags: BUSINESS EMPLOYMENT POLITICS SOCIETY) 

A skeleton of a woman from 5,800 B.C. is displayed at a museum in the town of Vratsa, some 120 km (75 miles) north of the Bulgarian capital [Sofia], January 11, 2006. A team of Bulgarian archaeologists led by [Georgi Ganetsovski] , discovered the skeleton last summer in the excavation works of a neolithic tomb near the Bulgarian village of Ohoden. The woman was 25-30 years old and was 153 cm tall. 

A skeleton of a woman from 5,800 B.C. is displayed at a museum in the town of Vratsa, some 120 km (75 miles) north of the Bulgarian capital [Sofia], January 11, 2006. A team of Bulgarian archaeologists led by [Georgi Ganetsovski] , discovered the skeleton last summer in the excavation works of a neolithic tomb near the Bulgarian village of Ohoden. The woman was 25-30 years old and was 153 cm tall. 

A skeleton of a woman from 5,800 B.C. is displayed at a museum in the town of Vratsa, some 120 km (75 miles) north of the Bulgarian capital Sofia, January 11, 2006. A team of Bulgarian archaeologists led by Georgi Ganetsovski , discovered the skeleton last summer in the excavation works of a neolithic tomb near the Bulgarian village of Ohoden. The woman was 25-30 years old and was 153 cm tall. REUTERS/Nikolay Doychinov 

Bulgarian archaeologist Georgi Ganetsovski stands next to the skeleton of a woman from 5,800 B.C. displayed at a museum in the town of Vratsa, some 120 km north of Sofia, January 11, 2006. A team of Bulgarian archaeologists led by Georgi Ganetsovski , discovered the skeleton last summer in the excavation works of a neolithic tomb near the Bulgarian village of Ohoden. The woman was 25-30 years old and was 153 cm tall. REUTERS/Nikolay Doychinov 

A skeleton of a woman from 5,800 B.C. is displayed at a museum in the town of Vratsa, some 120 km (75 miles) north of the Bulgarian capital Sofia, January 11, 2006. A team of Bulgarian archaeologists led by Georgi Ganetsovski , discovered the skeleton last summer in the excavation works of a neolithic tomb near the Bulgarian village of Ohoden. The woman was 25-30 years old and was 153 cm tall. REUTERS/Nikolay Doychinov 

Bulgarian archaeologist Georgi Ganetsovski shows a seventh millennium BC human skeleton discovered in excavation works near the town of Vratsa, some 120 km north from the capital Sofia, November 13, 2004. Archaelogists believe the skeleton is of a woman from the monochrome neolith era, the earliest stage of the new-stone age. The body was buried in a crouching pose, called "hocker", facing the direction of the sun. 

Bulgarian archaeologist Georgi Ganetsovski shows a seventh millennium BC human skeleton discovered in excavation works near the town of Vratsa, some 120 km north form the capital Sofia, November 13, 2004. Archaelogists believe the skeleton is of a woman from the monochrome neolith era, the earliest stage of the new-stone age. The body was buried in a crouching pose, called "hocker", facing the direction of the sun. REUTERS/Stoyan Nenov SN/JV