| 年份 | 利比里亚 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 268.671 |
| 2020 | 258.52 |
| 2019 | 260.508 |
| 2018 | 259.497 |
| 2017 | 267.821 |
| 2016 | 266.112 |
| 2015 | 278.718 |
| 2014 | 281.044 |
| 2013 | 265.769 |
| 2012 | 260.38 |
| 2011 | 262.846 |
| 2010 | 261.911 |
| 2009 | 256.234 |
| 2008 | 257.811 |
| 2007 | 257.49 |
| 2006 | 259.606 |
| 2005 | 255.664 |
| 2004 | 258.334 |
| 2003 | 275.622 |
| 2002 | 268.271 |
| 2001 | 267.546 |
| 2000 | 276.664 |
| 1999 | 280.66 |
| 1998 | 291.957 |
| 1997 | 298.092 |
| 1996 | 331.381 |
| 1995 | 336.54 |
| 1994 | 356.73 |
| 1993 | 355.053 |
| 1992 | 350.647 |
| 1991 | 361.375 |
| 1990 | 393.981 |
| 1989 | 371.754 |
| 1988 | 370.564 |
| 1987 | 368.852 |
| 1986 | 364.839 |
| 1985 | 367.582 |
| 1984 | 362.762 |
| 1983 | 365.338 |
| 1982 | 367.188 |
| 1981 | 367.928 |
| 1980 | 369.709 |
| 1979 | 374.148 |
| 1978 | 373.484 |
| 1977 | 377.849 |
| 1976 | 381.69 |
| 1975 | 386.441 |
| 1974 | 386.102 |
| 1973 | 389.83 |
| 1972 | 393.598 |
| 1971 | 399.617 |
| 1970 | 402.017 |
| 1969 | 404.088 |
| 1968 | 407.752 |
| 1967 | 411.044 |
| 1966 | 411.184 |
| 1965 | 414.07 |
| 1964 | 415.75 |
| 1963 | 415.039 |
| 1962 | 414.231 |
| 1961 | 415.345 |
| 1960 | 415.638 |