| 年份 | 伊朗伊斯兰共和国 |
|---|---|
| 2023 | - |
| 2022 | 26.8159 |
| 2021 | 22.8392 |
| 2020 | 19.4246 |
| 2019 | 23.4839 |
| 2018 | 31.1164 |
| 2017 | 22.7357 |
| 2016 | 21.1617 |
| 2015 | 18.7208 |
| 2014 | 22.8307 |
| 2013 | 25.1829 |
| 2012 | 22.4753 |
| 2011 | 24.9333 |
| 2010 | 24.3997 |
| 2009 | 22.7115 |
| 2008 | 26.5771 |
| 2007 | 28.8436 |
| 2006 | 29.869 |
| 2005 | 30.3308 |
| 2004 | 25.2669 |
| 2003 | 24.6275 |
| 2002 | 24.4139 |
| 2001 | 19.3033 |
| 2000 | 21.4671 |
| 1999 | 19.292 |
| 1998 | 12.6834 |
| 1997 | 17.2779 |
| 1996 | 20.1951 |
| 1995 | 21.6762 |
| 1994 | 28.2862 |
| 1993 | 25.4101 |
| 1992 | 13.1646 |
| 1991 | 13.8243 |
| 1990 | 13.2787 |
| 1989 | 9.82727 |
| 1988 | 7.28516 |
| 1987 | 9.1574 |
| 1986 | 3.73162 |
| 1985 | 8.8836 |
| 1984 | 11.3134 |
| 1983 | 14.5338 |
| 1982 | 17.0903 |
| 1981 | 12.3697 |
| 1980 | 13.736 |
| 1979 | 26.7463 |
| 1978 | 23.4745 |
| 1977 | 30.7953 |
| 1976 | 37.205 |
| 1975 | 40.7357 |
| 1974 | 47.3709 |
| 1973 | 33.4401 |
| 1972 | 22.9475 |
| 1971 | 23.1052 |
| 1970 | 18.4655 |
| 1969 | 18.0281 |
| 1968 | 17.4792 |
| 1967 | 17.2965 |
| 1966 | 16.2944 |
| 1965 | 16.1503 |
| 1964 | 16.3983 |
| 1963 | 15.331 |
| 1962 | 14.4974 |
| 1961 | 13.7321 |
| 1960 | 13.8491 |