This should give you a idea on Iran’s economic decline …
Per Capita GDPIran (Islamic Republic of)
1975 …$ 1,456
1979 …$ 2,245
1985 …$ 1,528
1989 …$ 1,635
1995 …$ 1,760
1999 …$ 1,664
2004 …$ 2,370
2007 …$ 4,072
This is from United nations statistics … the figures don’t need explanation