| 年份 | 蒙古 |
|---|---|
| 2023 | - |
| 2022 | 5.33071 |
| 2021 | 5.31672 |
| 2020 | 5.30644 |
| 2019 | 5.30995 |
| 2018 | 5.3487 |
| 2017 | 5.37622 |
| 2016 | 5.36665 |
| 2015 | 5.34489 |
| 2014 | 5.30236 |
| 2013 | 5.18297 |
| 2012 | 5.0188 |
| 2011 | 4.80997 |
| 2010 | 4.57026 |
| 2009 | 4.30367 |
| 2008 | 4.01682 |
| 2007 | 3.72868 |
| 2006 | 3.45854 |
| 2005 | 3.23096 |
| 2004 | 3.05284 |
| 2003 | 2.90367 |
| 2002 | 2.78137 |
| 2001 | 2.68493 |
| 2000 | 2.58906 |
| 1999 | 2.50948 |
| 1998 | 2.47849 |
| 1997 | 2.49481 |
| 1996 | 2.5505 |
| 1995 | 2.62561 |
| 1994 | 2.6897 |
| 1993 | 2.72271 |
| 1992 | 2.72062 |
| 1991 | 2.69224 |
| 1990 | 2.66213 |
| 1989 | 2.65731 |
| 1988 | 2.69838 |
| 1987 | 2.78336 |
| 1986 | 2.87899 |
| 1985 | 2.94828 |
| 1984 | 2.96849 |
| 1983 | 2.93664 |
| 1982 | 2.86652 |
| 1981 | 2.78962 |
| 1980 | 2.74531 |
| 1979 | 2.75203 |
| 1978 | 2.81257 |
| 1977 | 2.91857 |
| 1976 | 3.04439 |
| 1975 | 3.17412 |
| 1974 | 3.29997 |
| 1973 | 3.40864 |
| 1972 | 3.48957 |
| 1971 | 3.53889 |
| 1970 | 3.5586 |
| 1969 | 3.56904 |
| 1968 | 3.66452 |
| 1967 | 3.89405 |
| 1966 | 4.17332 |
| 1965 | 4.38563 |
| 1964 | 4.44119 |
| 1963 | 4.34526 |
| 1962 | 4.28981 |
| 1961 | 4.42735 |
| 1960 | 4.68768 |