"","class_name","gdp","return_on_invest"
"1","",51.183,56.158
"2","",50.149,31.633
"3","",50.508,58.954
"4","",51.103,26.134
"5","",49.422,31.460
"6","",50.001,29.650
"7","",51.657,70.538
"8","",51.180,62.496
"9","",51.692,23.641
"10","",50.604,58.757
"11","",49.231,54.146
"12","",51.016,30.990
"13","",48.934,61.366
"14","",49.698,20.870
"15","",51.543,28.081
"16","",51.388,61.753
"17","",50.690,55.184
"18","",48.287,53.475
"19","",49.449,56.487
"20","",50.069,61.510