| 年份 | 伊朗伊斯兰共和国 |
|---|---|
| 2023 | - |
| 2022 | 2.26907 |
| 2021 | 2.15127 |
| 2020 | 2.02415 |
| 2019 | 1.88724 |
| 2018 | 1.78186 |
| 2017 | 1.71226 |
| 2016 | 1.65351 |
| 2015 | 1.61531 |
| 2014 | 1.59875 |
| 2013 | 1.58838 |
| 2012 | 1.57892 |
| 2011 | 1.57096 |
| 2010 | 1.5605 |
| 2009 | 1.54684 |
| 2008 | 1.52813 |
| 2007 | 1.50306 |
| 2006 | 1.47574 |
| 2005 | 1.45015 |
| 2004 | 1.42268 |
| 2003 | 1.39043 |
| 2002 | 1.35228 |
| 2001 | 1.32 |
| 2000 | 1.29924 |
| 1999 | 1.28245 |
| 1998 | 1.27451 |
| 1997 | 1.26955 |
| 1996 | 1.25366 |
| 1995 | 1.22318 |
| 1994 | 1.18037 |
| 1993 | 1.1178 |
| 1992 | 1.04863 |
| 1991 | 0.993342 |
| 1990 | 0.957754 |
| 1989 | 0.930811 |
| 1988 | 0.905903 |
| 1987 | 0.89288 |
| 1986 | 0.889582 |
| 1985 | 0.893777 |
| 1984 | 0.907913 |
| 1983 | 0.935159 |
| 1982 | 0.970943 |
| 1981 | 1.01199 |
| 1980 | 1.04808 |
| 1979 | 1.07079 |
| 1978 | 1.08525 |
| 1977 | 1.09112 |
| 1976 | 1.09214 |
| 1975 | 1.09412 |
| 1974 | 1.09703 |
| 1973 | 1.09975 |
| 1972 | 1.10425 |
| 1971 | 1.10924 |
| 1970 | 1.11381 |
| 1969 | 1.11873 |
| 1968 | 1.12325 |
| 1967 | 1.12787 |
| 1966 | 1.1358 |
| 1965 | 1.15056 |
| 1964 | 1.17275 |
| 1963 | 1.20343 |
| 1962 | 1.24245 |
| 1961 | 1.28224 |
| 1960 | 1.31607 |