| 年份 | 朝鲜民主主义人民共和国 |
|---|---|
| 2023 | - |
| 2022 | 7.29722 |
| 2021 | 7.46182 |
| 2020 | 7.63574 |
| 2019 | 7.80996 |
| 2018 | 7.9778 |
| 2017 | 8.1343 |
| 2016 | 8.25162 |
| 2015 | 8.31294 |
| 2014 | 8.30894 |
| 2013 | 8.25186 |
| 2012 | 8.17205 |
| 2011 | 8.09236 |
| 2010 | 8.0289 |
| 2009 | 7.98482 |
| 2008 | 7.94287 |
| 2007 | 7.89515 |
| 2006 | 7.84894 |
| 2005 | 7.79674 |
| 2004 | 7.7473 |
| 2003 | 7.69642 |
| 2002 | 7.63295 |
| 2001 | 7.5933 |
| 2000 | 7.66942 |
| 1999 | 7.88287 |
| 1998 | 8.2397 |
| 1997 | 8.85951 |
| 1996 | 9.60011 |
| 1995 | 10.2612 |
| 1994 | 10.876 |
| 1993 | 11.4008 |
| 1992 | 11.7188 |
| 1991 | 11.8271 |
| 1990 | 11.755 |
| 1989 | 11.5436 |
| 1988 | 11.2935 |
| 1987 | 10.9114 |
| 1986 | 10.4524 |
| 1985 | 10.1596 |
| 1984 | 9.97388 |
| 1983 | 9.91699 |
| 1982 | 10.0532 |
| 1981 | 10.109 |
| 1980 | 9.97099 |
| 1979 | 9.73737 |
| 1978 | 9.18977 |
| 1977 | 8.26282 |
| 1976 | 7.39787 |
| 1975 | 7.03445 |
| 1974 | 7.03243 |
| 1973 | 7.23035 |
| 1972 | 7.85207 |
| 1971 | 8.83326 |
| 1970 | 9.56207 |
| 1969 | 9.99607 |
| 1968 | 10.51 |
| 1967 | 10.9816 |
| 1966 | 11.38 |
| 1965 | 11.7541 |
| 1964 | 12.1419 |
| 1963 | 12.5087 |
| 1962 | 12.7642 |
| 1961 | 12.8245 |
| 1960 | 12.6917 |