| 年份 | 朝鲜民主主义人民共和国  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 6.4512 | 
| 2021 | 6.40543 | 
| 2020 | 6.45426 | 
| 2019 | 6.61486 | 
| 2018 | 6.89021 | 
| 2017 | 7.37881 | 
| 2016 | 7.95885 | 
| 2015 | 8.46235 | 
| 2014 | 8.90302 | 
| 2013 | 9.24403 | 
| 2012 | 9.40672 | 
| 2011 | 9.39318 | 
| 2010 | 9.23434 | 
| 2009 | 8.97251 | 
| 2008 | 8.68673 | 
| 2007 | 8.30302 | 
| 2006 | 7.86914 | 
| 2005 | 7.57026 | 
| 2004 | 7.36083 | 
| 2003 | 7.25271 | 
| 2002 | 7.28606 | 
| 2001 | 7.26402 | 
| 2000 | 7.11081 | 
| 1999 | 6.89762 | 
| 1998 | 6.47174 | 
| 1997 | 5.78888 | 
| 1996 | 5.1577 | 
| 1995 | 4.87471 | 
| 1994 | 4.83842 | 
| 1993 | 4.93319 | 
| 1992 | 5.29195 | 
| 1991 | 5.86701 | 
| 1990 | 6.25402 | 
| 1989 | 6.42609 | 
| 1988 | 6.63586 | 
| 1987 | 6.80027 | 
| 1986 | 6.91432 | 
| 1985 | 7.02374 | 
| 1984 | 7.14108 | 
| 1983 | 7.23802 | 
| 1982 | 7.2722 | 
| 1981 | 7.21021 | 
| 1980 | 7.03831 | 
| 1979 | 6.76682 | 
| 1978 | 6.38112 | 
| 1977 | 5.89926 | 
| 1976 | 5.39094 | 
| 1975 | 4.90937 | 
| 1974 | 4.46181 | 
| 1973 | 4.05868 | 
| 1972 | 3.74531 | 
| 1971 | 3.51764 | 
| 1970 | 3.34431 | 
| 1969 | 3.21829 | 
| 1968 | 3.15554 | 
| 1967 | 3.13818 | 
| 1966 | 3.13694 | 
| 1965 | 3.14944 | 
| 1964 | 3.18107 | 
| 1963 | 3.22578 | 
| 1962 | 3.26968 | 
| 1961 | 3.30564 | 
| 1960 | 3.34762 |