| 年份 | 美属维京群岛 |
|---|---|
| 2023 | - |
| 2022 | -0.332976 |
| 2021 | -0.290692 |
| 2020 | -0.243882 |
| 2019 | -0.194483 |
| 2018 | -0.138546 |
| 2017 | -0.0896599 |
| 2016 | -0.0457735 |
| 2015 | -0.0146042 |
| 2014 | 0.00292066 |
| 2013 | 0.0233684 |
| 2012 | 0.0720868 |
| 2011 | 0.115057 |
| 2010 | 0.141565 |
| 2009 | 0.197549 |
| 2008 | 0.252884 |
| 2007 | 0.174844 |
| 2006 | 0.132811 |
| 2005 | 0.204973 |
| 2004 | 0.188591 |
| 2003 | 0.227572 |
| 2002 | 0.201288 |
| 2001 | 0.160925 |
| 2000 | 0.42641 |
| 1999 | 0.510491 |
| 1998 | 0.643316 |
| 1997 | 0.743083 |
| 1996 | 0.786585 |
| 1995 | 1.02257 |
| 1994 | 1.27736 |
| 1993 | 1.43112 |
| 1992 | 1.50916 |
| 1991 | 1.49059 |
| 1990 | 3.56772 |
| 1989 | 0.83907 |
| 1988 | 0.842702 |
| 1987 | 0.888348 |
| 1986 | 0.95164 |
| 1985 | 1.07261 |
| 1984 | 1.20945 |
| 1983 | 1.28281 |
| 1982 | 1.26735 |
| 1981 | 1.31867 |
| 1980 | 4.67985 |
| 1979 | 1.47132 |
| 1978 | 4.14237 |
| 1977 | -1.81427 |
| 1976 | 3.14168 |
| 1975 | 6.36331 |
| 1974 | 8.18694 |
| 1973 | 11.2896 |
| 1972 | 8.943 |
| 1971 | 12.8038 |
| 1970 | 6.89217 |
| 1969 | 9.76242 |
| 1968 | 14.5162 |
| 1967 | 8.06123 |
| 1966 | 8.06853 |
| 1965 | 8.52757 |
| 1964 | 4.6814 |
| 1963 | 15.1267 |
| 1962 | 4.3722 |
| 1961 | 7.81508 |
| 1960 | - |