Economy of the Socialist Federal Republic of Yugoslavia

Columns: City | Residents ( 1991 Census ) | GDP Index ( Yugoslavia=100 ) | Republic
Belgrade | 1,552,151 | 147 | SR Serbia | Zagreb | 777,826 | 188 | SR Croatia | Sarajevo | 527,049 | 133 | SR Bosnia and Herzegovina | Skopje | 506,926 | 90 | SR Macedonia | Ljubljana | 326,133 | 260 | SR Slovenia | Novi Sad | 299,294 | 172 | SR Serbia | Niš | 253,124 | 110 | SR Serbia

Example questions:
What was the Roman city that stood on the site of the city in Yugoslavia that had a GDP index of 260 in 1990 ? | What is the nickname of the city in Yugoslavia that had a 1991 population of 527,049 and hosted the 1984 winter Olympics ? | Which rivers form the confluence in the city in Yugoslavia that had a 1991 population of 1,552,151 ? | Which plain is the city in Yugoslavia that had a 1990 GDP index of 172 located on ? | Which mountain is the capital city of Croatia in Yugoslavia that had a 1991 population of 777,826 located at the southern slopes of ?

Answers:
Emona | Jerusalem of the Balkans | Sava and Danube rivers | Pannonian | Medvednica