| 年份 | 巴布亚新几内亚 |
|---|---|
| 2023 | - |
| 2022 | 2.23658 |
| 2021 | 2.1356 |
| 2020 | 2.0395 |
| 2019 | 1.94968 |
| 2018 | 1.87286 |
| 2017 | 1.80941 |
| 2016 | 1.7606 |
| 2015 | 1.7258 |
| 2014 | 1.70316 |
| 2013 | 1.6809 |
| 2012 | 1.65442 |
| 2011 | 1.634 |
| 2010 | 1.62229 |
| 2009 | 1.61518 |
| 2008 | 1.61846 |
| 2007 | 1.63418 |
| 2006 | 1.64844 |
| 2005 | 1.65766 |
| 2004 | 1.66497 |
| 2003 | 1.672 |
| 2002 | 1.67877 |
| 2001 | 1.68466 |
| 2000 | 1.68874 |
| 1999 | 1.69089 |
| 1998 | 1.69122 |
| 1997 | 1.68858 |
| 1996 | 1.68206 |
| 1995 | 1.67141 |
| 1994 | 1.65758 |
| 1993 | 1.64244 |
| 1992 | 1.62712 |
| 1991 | 1.60858 |
| 1990 | 1.57067 |
| 1989 | 1.55185 |
| 1988 | 1.57965 |
| 1987 | 1.61429 |
| 1986 | 1.64165 |
| 1985 | 1.66008 |
| 1984 | 1.66813 |
| 1983 | 1.66499 |
| 1982 | 1.6502 |
| 1981 | 1.62472 |
| 1980 | 1.5526 |
| 1979 | 1.43672 |
| 1978 | 1.3205 |
| 1977 | 1.20771 |
| 1976 | 1.10177 |
| 1975 | 1.00529 |
| 1974 | 0.920057 |
| 1973 | 0.846273 |
| 1972 | 0.783267 |
| 1971 | 0.74936 |
| 1970 | 0.741977 |
| 1969 | 0.739666 |
| 1968 | 0.742632 |
| 1967 | 0.751221 |
| 1966 | 0.756088 |
| 1965 | 0.751732 |
| 1964 | 0.743678 |
| 1963 | 0.729772 |
| 1962 | 0.707886 |
| 1961 | 0.688652 |
| 1960 | 0.669506 |