| 年份 | 朝鲜民主主义人民共和国 |
|---|---|
| 2023 | - |
| 2022 | 0.811185 |
| 2021 | 0.820465 |
| 2020 | 0.830758 |
| 2019 | 0.83538 |
| 2018 | 0.833991 |
| 2017 | 0.833995 |
| 2016 | 0.83575 |
| 2015 | 0.816057 |
| 2014 | 0.791027 |
| 2013 | 0.753121 |
| 2012 | 0.717123 |
| 2011 | 0.691268 |
| 2010 | 0.727839 |
| 2009 | 0.716381 |
| 2008 | 0.590993 |
| 2007 | 0.62714 |
| 2006 | 0.689678 |
| 2005 | 0.763404 |
| 2004 | 0.833048 |
| 2003 | 0.735228 |
| 2002 | 0.66669 |
| 2001 | 0.753462 |
| 2000 | 0.829487 |
| 1999 | 0.915711 |
| 1998 | 0.989512 |
| 1997 | 1.07117 |
| 1996 | 1.15072 |
| 1995 | 1.39405 |
| 1994 | 1.70617 |
| 1993 | 1.79156 |
| 1992 | 1.77743 |
| 1991 | 1.75935 |
| 1990 | 1.7289 |
| 1989 | 1.71668 |
| 1988 | 1.71928 |
| 1987 | 1.72785 |
| 1986 | 1.73339 |
| 1985 | 1.72003 |
| 1984 | 1.70751 |
| 1983 | 1.70331 |
| 1982 | 1.71381 |
| 1981 | 1.70623 |
| 1980 | 1.49628 |
| 1979 | 1.47459 |
| 1978 | 1.45765 |
| 1977 | 1.49791 |
| 1976 | 1.63634 |
| 1975 | 2.60869 |
| 1974 | 2.78889 |
| 1973 | 3.15575 |
| 1972 | 3.3967 |
| 1971 | 3.4551 |
| 1970 | 7.543 |
| 1969 | 7.86383 |
| 1968 | 6.83663 |
| 1967 | 4.90861 |
| 1966 | 4.72536 |
| 1965 | 4.67737 |
| 1964 | 4.73352 |
| 1963 | 4.69005 |
| 1962 | 4.52985 |
| 1961 | 4.59057 |
| 1960 | - |