| 年份 | 朝鲜民主主义人民共和国 |
|---|---|
| 2023 | - |
| 2022 | 16.8825 |
| 2021 | 16.2959 |
| 2020 | 15.8844 |
| 2019 | 15.5227 |
| 2018 | 15.3155 |
| 2017 | 15.3106 |
| 2016 | 15.4542 |
| 2015 | 15.359 |
| 2014 | 15.0628 |
| 2013 | 14.8332 |
| 2012 | 14.5496 |
| 2011 | 14.2158 |
| 2010 | 13.8765 |
| 2009 | 13.5493 |
| 2008 | 13.2232 |
| 2007 | 12.8638 |
| 2006 | 12.4434 |
| 2005 | 11.9631 |
| 2004 | 11.4285 |
| 2003 | 10.8511 |
| 2002 | 10.299 |
| 2001 | 9.80796 |
| 2000 | 9.35407 |
| 1999 | 8.9328 |
| 1998 | 8.54915 |
| 1997 | 8.21449 |
| 1996 | 7.91887 |
| 1995 | 7.64743 |
| 1994 | 7.36082 |
| 1993 | 7.07198 |
| 1992 | 6.81734 |
| 1991 | 6.58246 |
| 1990 | 6.37239 |
| 1989 | 6.19102 |
| 1988 | 6.03483 |
| 1987 | 5.91386 |
| 1986 | 5.81711 |
| 1985 | 5.73234 |
| 1984 | 5.66336 |
| 1983 | 5.60753 |
| 1982 | 5.57526 |
| 1981 | 5.55999 |
| 1980 | 5.55263 |
| 1979 | 5.55703 |
| 1978 | 5.5678 |
| 1977 | 5.57451 |
| 1976 | 5.57266 |
| 1975 | 5.57936 |
| 1974 | 5.59757 |
| 1973 | 5.63578 |
| 1972 | 5.69444 |
| 1971 | 5.72804 |
| 1970 | 5.73318 |
| 1969 | 5.72472 |
| 1968 | 5.68586 |
| 1967 | 5.60961 |
| 1966 | 5.50854 |
| 1965 | 5.43949 |
| 1964 | 5.40141 |
| 1963 | 5.35837 |
| 1962 | 5.32143 |
| 1961 | 5.28553 |
| 1960 | 5.23866 |