| 年份 | 伊朗伊斯兰共和国 |
|---|---|
| 2023 | - |
| 2022 | 11.0777 |
| 2021 | 10.7174 |
| 2020 | 10.3159 |
| 2019 | 9.84982 |
| 2018 | 9.39627 |
| 2017 | 8.96214 |
| 2016 | 8.55075 |
| 2015 | 8.18044 |
| 2014 | 7.84362 |
| 2013 | 7.54818 |
| 2012 | 7.30338 |
| 2011 | 7.08218 |
| 2010 | 6.9031 |
| 2009 | 6.7714 |
| 2008 | 6.67714 |
| 2007 | 6.61328 |
| 2006 | 6.57706 |
| 2005 | 6.56959 |
| 2004 | 6.57199 |
| 2003 | 6.57528 |
| 2002 | 6.54102 |
| 2001 | 6.51554 |
| 2000 | 6.54663 |
| 1999 | 6.57803 |
| 1998 | 6.60964 |
| 1997 | 6.63875 |
| 1996 | 6.64238 |
| 1995 | 6.62209 |
| 1994 | 6.58627 |
| 1993 | 6.44962 |
| 1992 | 6.29999 |
| 1991 | 6.23866 |
| 1990 | 6.25755 |
| 1989 | 6.25296 |
| 1988 | 6.13727 |
| 1987 | 6.01365 |
| 1986 | 5.90898 |
| 1985 | 5.83862 |
| 1984 | 5.80318 |
| 1983 | 5.80453 |
| 1982 | 5.8371 |
| 1981 | 5.97945 |
| 1980 | 6.14121 |
| 1979 | 6.20798 |
| 1978 | 6.28995 |
| 1977 | 6.38008 |
| 1976 | 6.45758 |
| 1975 | 6.53639 |
| 1974 | 6.62379 |
| 1973 | 6.70348 |
| 1972 | 6.7771 |
| 1971 | 6.8461 |
| 1970 | 6.91808 |
| 1969 | 6.99553 |
| 1968 | 7.07301 |
| 1967 | 7.1576 |
| 1966 | 7.25938 |
| 1965 | 7.39146 |
| 1964 | 7.55264 |
| 1963 | 7.7116 |
| 1962 | 7.86468 |
| 1961 | 8.01803 |
| 1960 | 8.15653 |