| 年份 | 伊朗伊斯兰共和国 |
|---|---|
| 2023 | - |
| 2022 | 4.65528 |
| 2021 | 4.56102 |
| 2020 | 4.4822 |
| 2019 | 4.437 |
| 2018 | 4.39841 |
| 2017 | 4.35214 |
| 2016 | 4.29498 |
| 2015 | 4.23965 |
| 2014 | 4.18422 |
| 2013 | 4.10256 |
| 2012 | 4.00273 |
| 2011 | 3.90155 |
| 2010 | 3.80375 |
| 2009 | 3.71105 |
| 2008 | 3.58252 |
| 2007 | 3.41753 |
| 2006 | 3.25019 |
| 2005 | 3.07615 |
| 2004 | 2.89698 |
| 2003 | 2.75906 |
| 2002 | 2.66089 |
| 2001 | 2.57798 |
| 2000 | 2.52406 |
| 1999 | 2.49196 |
| 1998 | 2.48201 |
| 1997 | 2.4881 |
| 1996 | 2.4989 |
| 1995 | 2.50737 |
| 1994 | 2.51257 |
| 1993 | 2.50188 |
| 1992 | 2.48733 |
| 1991 | 2.48863 |
| 1990 | 2.50808 |
| 1989 | 2.52719 |
| 1988 | 2.528 |
| 1987 | 2.52902 |
| 1986 | 2.54084 |
| 1985 | 2.56844 |
| 1984 | 2.61066 |
| 1983 | 2.66964 |
| 1982 | 2.73651 |
| 1981 | 2.79747 |
| 1980 | 2.82205 |
| 1979 | 2.79502 |
| 1978 | 2.72741 |
| 1977 | 2.62549 |
| 1976 | 2.52132 |
| 1975 | 2.43858 |
| 1974 | 2.3747 |
| 1973 | 2.32791 |
| 1972 | 2.30583 |
| 1971 | 2.30626 |
| 1970 | 2.32629 |
| 1969 | 2.3714 |
| 1968 | 2.44833 |
| 1967 | 2.54529 |
| 1966 | 2.64038 |
| 1965 | 2.72085 |
| 1964 | 2.78541 |
| 1963 | 2.83032 |
| 1962 | 2.857 |
| 1961 | 2.87822 |
| 1960 | 2.90379 |