| 年份 | 伊朗伊斯兰共和国 |
|---|---|
| 2023 | - |
| 2022 | 6.56772 |
| 2021 | 6.41054 |
| 2020 | 6.30435 |
| 2019 | 6.22046 |
| 2018 | 6.14933 |
| 2017 | 6.06613 |
| 2016 | 5.9426 |
| 2015 | 5.80151 |
| 2014 | 5.71948 |
| 2013 | 5.67893 |
| 2012 | 5.62867 |
| 2011 | 5.57921 |
| 2010 | 5.5385 |
| 2009 | 5.51197 |
| 2008 | 5.48395 |
| 2007 | 5.44002 |
| 2006 | 5.38007 |
| 2005 | 5.30166 |
| 2004 | 5.20061 |
| 2003 | 5.08646 |
| 2002 | 4.96472 |
| 2001 | 4.84684 |
| 2000 | 4.73936 |
| 1999 | 4.63523 |
| 1998 | 4.48059 |
| 1997 | 4.26867 |
| 1996 | 4.05045 |
| 1995 | 3.82752 |
| 1994 | 3.60259 |
| 1993 | 3.44889 |
| 1992 | 3.37339 |
| 1991 | 3.31463 |
| 1990 | 3.27551 |
| 1989 | 3.2692 |
| 1988 | 3.30666 |
| 1987 | 3.37052 |
| 1986 | 3.44659 |
| 1985 | 3.52424 |
| 1984 | 3.59904 |
| 1983 | 3.66755 |
| 1982 | 3.72687 |
| 1981 | 3.77137 |
| 1980 | 3.81604 |
| 1979 | 3.86475 |
| 1978 | 3.8957 |
| 1977 | 3.91514 |
| 1976 | 3.942 |
| 1975 | 3.98487 |
| 1974 | 4.04333 |
| 1973 | 4.12395 |
| 1972 | 4.21304 |
| 1971 | 4.27083 |
| 1970 | 4.27133 |
| 1969 | 4.21626 |
| 1968 | 4.10096 |
| 1967 | 3.94071 |
| 1966 | 3.79498 |
| 1965 | 3.70049 |
| 1964 | 3.65246 |
| 1963 | 3.65408 |
| 1962 | 3.7046 |
| 1961 | 3.76875 |
| 1960 | 3.8282 |