| 年份 | 朝鲜民主主义人民共和国 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 1.809 |
| 2020 | 1.818 |
| 2019 | 1.84 |
| 2018 | 1.845 |
| 2017 | 1.857 |
| 2016 | 1.87 |
| 2015 | 1.884 |
| 2014 | 1.885 |
| 2013 | 1.86 |
| 2012 | 1.836 |
| 2011 | 1.811 |
| 2010 | 1.809 |
| 2009 | 1.951 |
| 2008 | 1.977 |
| 2007 | 1.956 |
| 2006 | 1.958 |
| 2005 | 1.955 |
| 2004 | 1.962 |
| 2003 | 1.914 |
| 2002 | 1.943 |
| 2001 | 1.981 |
| 2000 | 1.969 |
| 1999 | 1.99 |
| 1998 | 2.008 |
| 1997 | 2.031 |
| 1996 | 2.107 |
| 1995 | 2.164 |
| 1994 | 2.203 |
| 1993 | 2.248 |
| 1992 | 2.292 |
| 1991 | 2.34 |
| 1990 | 2.35 |
| 1989 | 2.35 |
| 1988 | 2.414 |
| 1987 | 2.456 |
| 1986 | 2.539 |
| 1985 | 2.582 |
| 1984 | 2.629 |
| 1983 | 2.687 |
| 1982 | 2.763 |
| 1981 | 2.84 |
| 1980 | 2.841 |
| 1979 | 2.849 |
| 1978 | 2.793 |
| 1977 | 2.771 |
| 1976 | 2.836 |
| 1975 | 3.047 |
| 1974 | 3.142 |
| 1973 | 3.353 |
| 1972 | 3.889 |
| 1971 | 3.739 |
| 1970 | 3.848 |
| 1969 | 3.86 |
| 1968 | 3.872 |
| 1967 | 4.05 |
| 1966 | 3.709 |
| 1965 | 3.556 |
| 1964 | 3.547 |
| 1963 | 3.626 |
| 1962 | 3.412 |
| 1961 | 3.261 |
| 1960 | 3.568 |