| 年份 | 伊朗伊斯兰共和国 |
|---|---|
| 2023 | - |
| 2022 | 0.710746 |
| 2021 | 0.722822 |
| 2020 | 0.835176 |
| 2019 | 1.09959 |
| 2018 | 1.30788 |
| 2017 | 1.42883 |
| 2016 | 1.83581 |
| 2015 | 2.26179 |
| 2014 | 1.89721 |
| 2013 | 1.45651 |
| 2012 | 1.27743 |
| 2011 | 1.27755 |
| 2010 | 1.40442 |
| 2009 | 1.36047 |
| 2008 | 1.37189 |
| 2007 | 1.45364 |
| 2006 | 1.5456 |
| 2005 | 1.61004 |
| 2004 | 1.61586 |
| 2003 | 0.927821 |
| 2002 | 0.973525 |
| 2001 | 1.71003 |
| 2000 | 1.64539 |
| 1999 | 1.58414 |
| 1998 | 1.55771 |
| 1997 | 1.42195 |
| 1996 | 1.31311 |
| 1995 | 1.33974 |
| 1994 | 0.384695 |
| 1993 | 0.643706 |
| 1992 | 2.35372 |
| 1991 | 3.86261 |
| 1990 | 3.92763 |
| 1989 | 2.89906 |
| 1988 | 3.05981 |
| 1987 | 3.27465 |
| 1986 | 3.42534 |
| 1985 | 3.52642 |
| 1984 | 3.57049 |
| 1983 | 3.53207 |
| 1982 | 4.87894 |
| 1981 | 4.95206 |
| 1980 | 3.47513 |
| 1979 | 3.31007 |
| 1978 | 3.15297 |
| 1977 | 3.01383 |
| 1976 | 2.95108 |
| 1975 | 2.96981 |
| 1974 | 2.90629 |
| 1973 | 2.84935 |
| 1972 | 2.82207 |
| 1971 | 2.85511 |
| 1970 | 2.87405 |
| 1969 | 2.81896 |
| 1968 | 2.79958 |
| 1967 | 2.85139 |
| 1966 | 2.92306 |
| 1965 | 2.95565 |
| 1964 | 2.92147 |
| 1963 | 2.85229 |
| 1962 | 2.78756 |
| 1961 | 2.743 |
| 1960 | - |