| 年份 | 缅甸 |
|---|---|
| 2023 | - |
| 2022 | 1.72797 |
| 2021 | 1.68029 |
| 2020 | 1.65184 |
| 2019 | 1.59681 |
| 2018 | 1.56369 |
| 2017 | 1.55486 |
| 2016 | 1.53755 |
| 2015 | 1.50158 |
| 2014 | 1.48691 |
| 2013 | 1.50343 |
| 2012 | 1.502 |
| 2011 | 1.46932 |
| 2010 | 1.42241 |
| 2009 | 1.24323 |
| 2008 | 1.24585 |
| 2007 | 1.40294 |
| 2006 | 1.42277 |
| 2005 | 1.47994 |
| 2004 | 1.54738 |
| 2003 | 1.62035 |
| 2002 | 1.67669 |
| 2001 | 1.71579 |
| 2000 | 1.77244 |
| 1999 | 1.84627 |
| 1998 | 1.91103 |
| 1997 | 1.93386 |
| 1996 | 1.94165 |
| 1995 | 1.95829 |
| 1994 | 1.98927 |
| 1993 | 2.01142 |
| 1992 | 2.04672 |
| 1991 | 2.12932 |
| 1990 | 2.22493 |
| 1989 | 2.27794 |
| 1988 | 2.34074 |
| 1987 | 2.44164 |
| 1986 | 2.55603 |
| 1985 | 2.67037 |
| 1984 | 2.75982 |
| 1983 | 2.14709 |
| 1982 | 1.88313 |
| 1981 | 1.94454 |
| 1980 | 1.98901 |
| 1979 | 1.99906 |
| 1978 | 2.02174 |
| 1977 | 2.00011 |
| 1976 | 1.9946 |
| 1975 | 2.00901 |
| 1974 | 2.03309 |
| 1973 | 3.37594 |
| 1972 | 3.9265 |
| 1971 | 3.9581 |
| 1970 | 3.99893 |
| 1969 | 4.02439 |
| 1968 | 4.04646 |
| 1967 | 4.03331 |
| 1966 | 4.02725 |
| 1965 | 4.00854 |
| 1964 | 3.97794 |
| 1963 | 3.9638 |
| 1962 | 3.95484 |
| 1961 | 3.94966 |
| 1960 | - |