| 年份 | 伊朗伊斯兰共和国 |
|---|---|
| 2023 | - |
| 2022 | 8.48962 |
| 2021 | 8.12853 |
| 2020 | 7.76345 |
| 2019 | 7.43543 |
| 2018 | 7.17622 |
| 2017 | 6.98615 |
| 2016 | 6.86414 |
| 2015 | 6.74254 |
| 2014 | 6.57343 |
| 2013 | 6.46068 |
| 2012 | 6.41657 |
| 2011 | 6.36479 |
| 2010 | 6.29831 |
| 2009 | 6.22664 |
| 2008 | 6.15691 |
| 2007 | 6.09322 |
| 2006 | 6.03503 |
| 2005 | 5.98689 |
| 2004 | 5.95149 |
| 2003 | 5.91602 |
| 2002 | 5.86778 |
| 2001 | 5.80321 |
| 2000 | 5.71676 |
| 1999 | 5.60776 |
| 1998 | 5.48635 |
| 1997 | 5.36669 |
| 1996 | 5.25622 |
| 1995 | 5.1581 |
| 1994 | 5.07265 |
| 1993 | 4.95414 |
| 1992 | 4.7816 |
| 1991 | 4.58589 |
| 1990 | 4.36052 |
| 1989 | 4.12503 |
| 1988 | 3.97878 |
| 1987 | 3.91727 |
| 1986 | 3.88363 |
| 1985 | 3.88265 |
| 1984 | 3.91701 |
| 1983 | 3.98968 |
| 1982 | 4.0924 |
| 1981 | 4.16571 |
| 1980 | 4.2387 |
| 1979 | 4.34851 |
| 1978 | 4.44196 |
| 1977 | 4.51462 |
| 1976 | 4.57571 |
| 1975 | 4.62744 |
| 1974 | 4.66582 |
| 1973 | 4.68503 |
| 1972 | 4.69424 |
| 1971 | 4.718 |
| 1970 | 4.76843 |
| 1969 | 4.8435 |
| 1968 | 4.94822 |
| 1967 | 5.06441 |
| 1966 | 5.1405 |
| 1965 | 5.14299 |
| 1964 | 5.0753 |
| 1963 | 4.93382 |
| 1962 | 4.73823 |
| 1961 | 4.56183 |
| 1960 | 4.45138 |