| 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 |