| 年份 | 朝鲜民主主义人民共和国 |
|---|---|
| 2023 | - |
| 2022 | 6.72013 |
| 2021 | 6.88135 |
| 2020 | 7.05364 |
| 2019 | 7.22291 |
| 2018 | 7.40306 |
| 2017 | 7.58807 |
| 2016 | 7.77185 |
| 2015 | 7.964 |
| 2014 | 8.15016 |
| 2013 | 8.32021 |
| 2012 | 8.47142 |
| 2011 | 8.57458 |
| 2010 | 8.61361 |
| 2009 | 8.59124 |
| 2008 | 8.5242 |
| 2007 | 8.43802 |
| 2006 | 8.35932 |
| 2005 | 8.30564 |
| 2004 | 8.27659 |
| 2003 | 8.2533 |
| 2002 | 8.22024 |
| 2001 | 8.18452 |
| 2000 | 8.14507 |
| 1999 | 8.10907 |
| 1998 | 8.07315 |
| 1997 | 8.03327 |
| 1996 | 8.0259 |
| 1995 | 8.14017 |
| 1994 | 8.4096 |
| 1993 | 8.84119 |
| 1992 | 9.55425 |
| 1991 | 10.3963 |
| 1990 | 11.1482 |
| 1989 | 11.8306 |
| 1988 | 12.399 |
| 1987 | 12.7451 |
| 1986 | 12.8653 |
| 1985 | 12.7922 |
| 1984 | 12.5696 |
| 1983 | 12.3047 |
| 1982 | 11.8951 |
| 1981 | 11.4012 |
| 1980 | 11.0867 |
| 1979 | 10.8887 |
| 1978 | 10.8306 |
| 1977 | 10.9821 |
| 1976 | 11.049 |
| 1975 | 10.921 |
| 1974 | 10.7083 |
| 1973 | 10.1684 |
| 1972 | 9.23736 |
| 1971 | 8.37348 |
| 1970 | 8.05536 |
| 1969 | 8.14473 |
| 1968 | 8.45909 |
| 1967 | 9.25513 |
| 1966 | 10.4569 |
| 1965 | 11.3357 |
| 1964 | 11.8424 |
| 1963 | 12.437 |
| 1962 | 12.9524 |
| 1961 | 13.3561 |
| 1960 | 13.7646 |