| 年份 | 伊朗伊斯兰共和国 |
|---|---|
| 2023 | - |
| 2022 | 4.60373 |
| 2021 | 4.5433 |
| 2020 | 4.49886 |
| 2019 | 4.47391 |
| 2018 | 4.44001 |
| 2017 | 4.39766 |
| 2016 | 4.34878 |
| 2015 | 4.30303 |
| 2014 | 4.25699 |
| 2013 | 4.18417 |
| 2012 | 4.09199 |
| 2011 | 3.99684 |
| 2010 | 3.9046 |
| 2009 | 3.81531 |
| 2008 | 3.68309 |
| 2007 | 3.50423 |
| 2006 | 3.31748 |
| 2005 | 3.1226 |
| 2004 | 2.92147 |
| 2003 | 2.76771 |
| 2002 | 2.66453 |
| 2001 | 2.57921 |
| 2000 | 2.52002 |
| 1999 | 2.48165 |
| 1998 | 2.46478 |
| 1997 | 2.4637 |
| 1996 | 2.4679 |
| 1995 | 2.47164 |
| 1994 | 2.47417 |
| 1993 | 2.46632 |
| 1992 | 2.45531 |
| 1991 | 2.45414 |
| 1990 | 2.46549 |
| 1989 | 2.47695 |
| 1988 | 2.4753 |
| 1987 | 2.47374 |
| 1986 | 2.48225 |
| 1985 | 2.50625 |
| 1984 | 2.54475 |
| 1983 | 2.60067 |
| 1982 | 2.665 |
| 1981 | 2.72625 |
| 1980 | 2.75342 |
| 1979 | 2.72723 |
| 1978 | 2.6598 |
| 1977 | 2.55989 |
| 1976 | 2.46553 |
| 1975 | 2.40234 |
| 1974 | 2.36806 |
| 1973 | 2.36455 |
| 1972 | 2.3914 |
| 1971 | 2.42718 |
| 1970 | 2.46044 |
| 1969 | 2.49619 |
| 1968 | 2.53589 |
| 1967 | 2.57575 |
| 1966 | 2.61769 |
| 1965 | 2.6633 |
| 1964 | 2.71024 |
| 1963 | 2.75773 |
| 1962 | 2.80269 |
| 1961 | 2.83461 |
| 1960 | 2.84707 |