| 年份 | 朝鲜民主主义人民共和国 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 13.24 |
| 2020 | 13.333 |
| 2019 | 13.487 |
| 2018 | 13.488 |
| 2017 | 13.514 |
| 2016 | 13.525 |
| 2015 | 13.536 |
| 2014 | 13.45 |
| 2013 | 13.192 |
| 2012 | 12.957 |
| 2011 | 12.728 |
| 2010 | 12.706 |
| 2009 | 13.723 |
| 2008 | 13.983 |
| 2007 | 13.971 |
| 2006 | 14.207 |
| 2005 | 14.534 |
| 2004 | 15.051 |
| 2003 | 15.283 |
| 2002 | 16.067 |
| 2001 | 16.964 |
| 2000 | 17.44 |
| 1999 | 18.138 |
| 1998 | 18.718 |
| 1997 | 19.188 |
| 1996 | 20.004 |
| 1995 | 20.475 |
| 1994 | 20.661 |
| 1993 | 20.804 |
| 1992 | 20.834 |
| 1991 | 20.833 |
| 1990 | 20.515 |
| 1989 | 20.116 |
| 1988 | 20.255 |
| 1987 | 20.216 |
| 1986 | 20.495 |
| 1985 | 20.425 |
| 1984 | 20.364 |
| 1983 | 20.371 |
| 1982 | 20.536 |
| 1981 | 20.781 |
| 1980 | 20.622 |
| 1979 | 20.664 |
| 1978 | 20.449 |
| 1977 | 20.637 |
| 1976 | 21.641 |
| 1975 | 23.908 |
| 1974 | 25.408 |
| 1973 | 27.959 |
| 1972 | 33.352 |
| 1971 | 33.127 |
| 1970 | 35.036 |
| 1969 | 36.044 |
| 1968 | 36.953 |
| 1967 | 39.24 |
| 1966 | 36.62 |
| 1965 | 35.481 |
| 1964 | 35.561 |
| 1963 | 36.33 |
| 1962 | 34.269 |
| 1961 | 32.654 |
| 1960 | 35.194 |