| 年份 | 阿富汗 |
|---|---|
| 2023 | - |
| 2022 | 0.31973 |
| 2021 | 0.321166 |
| 2020 | 0.322384 |
| 2019 | 0.319333 |
| 2018 | 0.313697 |
| 2017 | 0.307791 |
| 2016 | 0.303111 |
| 2015 | 0.301615 |
| 2014 | 0.298584 |
| 2013 | 0.293069 |
| 2012 | 0.288405 |
| 2011 | 0.279966 |
| 2010 | 0.271824 |
| 2009 | 0.267132 |
| 2008 | 0.258695 |
| 2007 | 0.257461 |
| 2006 | 0.260145 |
| 2005 | 0.253512 |
| 2004 | 0.246629 |
| 2003 | 0.24226 |
| 2002 | 0.237956 |
| 2001 | 0.233745 |
| 2000 | 0.229894 |
| 1999 | 0.226247 |
| 1998 | 0.222764 |
| 1997 | 0.219518 |
| 1996 | 0.216148 |
| 1995 | 0.212703 |
| 1994 | 0.209354 |
| 1993 | 0.206004 |
| 1992 | 0.202996 |
| 1991 | 0.200737 |
| 1990 | 0.199555 |
| 1989 | 0.198852 |
| 1988 | 0.198369 |
| 1987 | 0.199422 |
| 1986 | 0.201583 |
| 1985 | 0.205878 |
| 1984 | 0.212115 |
| 1983 | 0.216573 |
| 1982 | 0.219402 |
| 1981 | 0.221423 |
| 1980 | 0.22241 |
| 1979 | 0.223267 |
| 1978 | 0.223323 |
| 1977 | 0.222197 |
| 1976 | 0.220198 |
| 1975 | 0.217811 |
| 1974 | 0.215366 |
| 1973 | 0.212871 |
| 1972 | 0.210417 |
| 1971 | 0.207882 |
| 1970 | 0.205504 |
| 1969 | 0.203376 |
| 1968 | 0.20114 |
| 1967 | 0.198728 |
| 1966 | 0.196103 |
| 1965 | 0.193242 |
| 1964 | 0.190172 |
| 1963 | 0.186846 |
| 1962 | 0.183215 |
| 1961 | 0.17945 |
| 1960 | 0.175557 |