| 年份 | 蒙古 |
|---|---|
| 2023 | - |
| 2022 | 1.71026 |
| 2021 | 1.79562 |
| 2020 | 2.06324 |
| 2019 | 2.28304 |
| 2018 | 2.29125 |
| 2017 | 2.26709 |
| 2016 | 2.26049 |
| 2015 | 2.20911 |
| 2014 | 2.10354 |
| 2013 | 1.97181 |
| 2012 | 1.84742 |
| 2011 | 2.10532 |
| 2010 | 2.80534 |
| 2009 | 2.75047 |
| 2008 | 2.64102 |
| 2007 | 2.54747 |
| 2006 | 2.50747 |
| 2005 | 2.53207 |
| 2004 | 2.59904 |
| 2003 | 2.66636 |
| 2002 | 2.72781 |
| 2001 | 2.76646 |
| 2000 | 1.81853 |
| 1999 | 0.884575 |
| 1998 | 0.897281 |
| 1997 | 0.963019 |
| 1996 | 1.05997 |
| 1995 | 1.16369 |
| 1994 | 1.28571 |
| 1993 | 1.41994 |
| 1992 | 1.56267 |
| 1991 | 1.69142 |
| 1990 | 1.81779 |
| 1989 | 2.73184 |
| 1988 | 3.5881 |
| 1987 | 3.63483 |
| 1986 | 3.64239 |
| 1985 | 3.61108 |
| 1984 | 3.57499 |
| 1983 | 3.54326 |
| 1982 | 3.53614 |
| 1981 | 3.54368 |
| 1980 | 3.55323 |
| 1979 | 3.83283 |
| 1978 | 4.15415 |
| 1977 | 4.25235 |
| 1976 | 4.35793 |
| 1975 | 4.40361 |
| 1974 | 4.38724 |
| 1973 | 4.31869 |
| 1972 | 4.24227 |
| 1971 | 4.16742 |
| 1970 | 4.10583 |
| 1969 | 3.93228 |
| 1968 | 3.88644 |
| 1967 | 3.98989 |
| 1966 | 4.0124 |
| 1965 | 3.95009 |
| 1964 | 3.86095 |
| 1963 | 6.16586 |
| 1962 | 8.58073 |
| 1961 | 8.84009 |
| 1960 | - |