| 年份 | 蒙古 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 2.837 |
| 2020 | 2.9 |
| 2019 | 2.937 |
| 2018 | 2.923 |
| 2017 | 2.891 |
| 2016 | 2.957 |
| 2015 | 3.01 |
| 2014 | 2.996 |
| 2013 | 2.897 |
| 2012 | 2.739 |
| 2011 | 2.602 |
| 2010 | 2.513 |
| 2009 | 2.533 |
| 2008 | 2.446 |
| 2007 | 2.297 |
| 2006 | 2.13 |
| 2005 | 2.028 |
| 2004 | 2.017 |
| 2003 | 2.051 |
| 2002 | 2.13 |
| 2001 | 2.195 |
| 2000 | 2.255 |
| 1999 | 2.302 |
| 1998 | 2.363 |
| 1997 | 2.469 |
| 1996 | 2.618 |
| 1995 | 2.789 |
| 1994 | 2.947 |
| 1993 | 3.163 |
| 1992 | 3.524 |
| 1991 | 3.905 |
| 1990 | 4.232 |
| 1989 | 4.445 |
| 1988 | 4.682 |
| 1987 | 4.85 |
| 1986 | 5.039 |
| 1985 | 5.271 |
| 1984 | 5.468 |
| 1983 | 5.653 |
| 1982 | 5.845 |
| 1981 | 6.033 |
| 1980 | 6.26 |
| 1979 | 6.469 |
| 1978 | 6.669 |
| 1977 | 6.823 |
| 1976 | 6.967 |
| 1975 | 7.134 |
| 1974 | 7.268 |
| 1973 | 7.354 |
| 1972 | 7.403 |
| 1971 | 7.433 |
| 1970 | 7.464 |
| 1969 | 7.487 |
| 1968 | 7.517 |
| 1967 | 7.529 |
| 1966 | 7.545 |
| 1965 | 7.482 |
| 1964 | 7.451 |
| 1963 | 7.383 |
| 1962 | 7.238 |
| 1961 | 7.007 |
| 1960 | 6.827 |