| 年份 | 波多黎各 |
|---|---|
| 2023 | - |
| 2022 | 5.0461 |
| 2021 | 4.80393 |
| 2020 | 4.54078 |
| 2019 | 4.29722 |
| 2018 | 4.06845 |
| 2017 | 3.84125 |
| 2016 | 3.63623 |
| 2015 | 3.46882 |
| 2014 | 3.33126 |
| 2013 | 3.21149 |
| 2012 | 3.10889 |
| 2011 | 3.02191 |
| 2010 | 2.93891 |
| 2009 | 2.85218 |
| 2008 | 2.7912 |
| 2007 | 2.76707 |
| 2006 | 2.75004 |
| 2005 | 2.72018 |
| 2004 | 2.67377 |
| 2003 | 2.60193 |
| 2002 | 2.53029 |
| 2001 | 2.47302 |
| 2000 | 2.40209 |
| 1999 | 2.33527 |
| 1998 | 2.28069 |
| 1997 | 2.21865 |
| 1996 | 2.13939 |
| 1995 | 2.07379 |
| 1994 | 2.02984 |
| 1993 | 2.01361 |
| 1992 | 2.01045 |
| 1991 | 2.00842 |
| 1990 | 2.00645 |
| 1989 | 1.98422 |
| 1988 | 1.92419 |
| 1987 | 1.83818 |
| 1986 | 1.7565 |
| 1985 | 1.68135 |
| 1984 | 1.61359 |
| 1983 | 1.57405 |
| 1982 | 1.56114 |
| 1981 | 1.52804 |
| 1980 | 1.47747 |
| 1979 | 1.42495 |
| 1978 | 1.37565 |
| 1977 | 1.3216 |
| 1976 | 1.27682 |
| 1975 | 1.24765 |
| 1974 | 1.22211 |
| 1973 | 1.20283 |
| 1972 | 1.18868 |
| 1971 | 1.17038 |
| 1970 | 1.14402 |
| 1969 | 1.11555 |
| 1968 | 1.08839 |
| 1967 | 1.06246 |
| 1966 | 1.03637 |
| 1965 | 1.00919 |
| 1964 | 0.979885 |
| 1963 | 0.950056 |
| 1962 | 0.922119 |
| 1961 | 0.895273 |
| 1960 | 0.869572 |