Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1971 | - | - | 15.9(100) | 17.5( 99) | 15.2( 99) | 12.9( 99) | 22.4(100) | 16.3(100) | 16.2(100) | 15.8( 99) | 13.9(100) | 18.0(100) |
1972 | 23.3(100) | 17.6(100) | 18.5(100) | 20.5(100) | 13.5(100) | 17.0(100) | 18.0(100) | 14.2(100) | 17.3(100) | 12.4(100) | 14.1(100) | 23.4(100) |
1973 | 17.0(100) | 15.2(100) | 14.8( 99) | 17.6(100) | 15.5( 99) | 19.6(100) | 15.0( 99) | 14.6(100) | 14.9( 99) | 12.8(100) | 16.8( 99) | 10.4(100) |
1974 | 12.1(100) | 13.1(100) | 15.9(100) | 15.8(100) | 13.0( 99) | 16.1(100) | 11.8( 99) | 18.1(100) | 19.1( 99) | 12.1(100) | 15.0(100) | 13.2( 99) |
1975 | 12.6(100) | 14.5( 99) | 15.1( 99) | 16.7(100) | 11.6(100) | 14.0(100) | 12.2(100) | 19.8(100) | 16.5(100) | 11.3(100) | 17.6(100) | 12.2(100) |
1976 | 17.1(100) | 14.5(100) | 17.2(100) | 18.4(100) | 18.3(100) | 21.4(100) | 22.8(100) | 15.0(100) | 13.1(100) | 13.9(100) | 12.5( 99) | 15.8(100) |
1977 | 12.8(100) | 19.0(100) | 18.6( 99) | 20.4( 99) | 11.4( 99) | 18.4(100) | 12.2( 99) | 17.3(100) | 21.5( 99) | 17.0(100) | 17.2(100) | 15.2(100) |
1978 | 17.8(100) | 19.8(100) | 20.5(100) | 23.5(100) | 15.0( 99) | 12.9(100) | 16.0(100) | 18.8(100) | 16.4( 99) | 17.0(100) | 17.4( 99) | 13.0(100) |
1979 | 19.3(100) | 18.6(100) | 16.8( 99) | 18.1(100) | 16.8( 99) | 17.8(100) | 16.9( 99) | 13.1(100) | 19.6(100) | 15.6(100) | 19.5(100) | 18.5(100) |
1980 | 12.8(100) | 14.4(100) | 24.2( 99) | 18.1( 99) | 15.2( 99) | 14.6(100) | 11.5( 99) | 16.3(100) | 18.1( 99) | 14.2(100) | 20.6( 99) | 12.7(100) |
1981 | 13.7(100) | 19.8(100) | 17.6( 99) | 14.8( 99) | 15.9(100) | 13.0(100) | 13.6( 99) | 17.9(100) | 20.4( 99) | 19.0(100) | 13.1( 99) | 14.5(100) |
1982 | 11.0(100) | 11.7(100) | 15.1(100) | 19.9(100) | 17.6(100) | 14.1(100) | 13.5(100) | 15.3(100) | 20.6(100) | 14.6(100) | 14.5(100) | 13.5(100) |
1983 | 19.4(100) | 20.2(100) | 19.1(100) | 17.8(100) | 17.3(100) | 14.1(100) | 14.1(100) | 14.9(100) | 18.8(100) | 15.2(100) | 14.3(100) | 18.5(100) |
1984 | 12.6(100) | 17.8(100) | 14.1(100) | 15.7(100) | 10.7(100) | 12.9(100) | 12.8(100) | 14.5(100) | 18.8(100) | 14.9(100) | 13.4(100) | 15.5(100) |
1985 | 11.2(100) | 16.0(100) | 13.7(100) | 14.1(100) | 18.5(100) | 13.5(100) | 17.5(100) | 15.5(100) | 14.8(100) | 12.7(100) | 12.4(100) | 16.6(100) |
1986 | 14.7(100) | 11.9(100) | 22.4(100) | 18.8(100) | 16.0(100) | 23.5(100) | 16.0(100) | 16.6(100) | 19.4(100) | 14.0(100) | 11.4(100) | 11.2(100) |
1987 | 15.0(100) | 15.2(100) | 22.4(100) | 18.7(100) | 21.8(100) | 17.5(100) | 19.8(100) | 19.6(100) | 17.1(100) | 13.5(100) | 15.5(100) | 12.3(100) |
1988 | 16.2(100) | 15.9( 99) | 18.8(100) | 17.7( 99) | 18.3(100) | 14.2(100) | 15.9(100) | 17.7(100) | 15.7( 96) | 17.8(100) | 13.0( 99) | 15.4(100) |
1989 | 11.7(100) | 11.8(100) | 18.6(100) | 17.2(100) | 14.1(100) | 14.1( 99) | 17.7(100) | 15.4(100) | 17.4(100) | 15.8(100) | 12.6(100) | 15.1(100) |
1990 | 14.3(100) | 17.0( 99) | 16.8(100) | 17.2(100) | 22.1(100) | 14.8(100) | 14.4(100) | 13.7(100) | 17.3(100) | 11.4(100) | 14.1(100) | 10.0(100) |
1991 | 14.2(100) | 12.8( 98) | - | - | - | - | - | - | - | - | - | - |
1992 | - | - | - | - | - | - | - | - | - | - | - | - |
1993 | - | - | - | - | - | - | - | - | - | - | - | - |
1994 | - | - | - | - | - | - | - | - | - | - | - | - |
1995 | - | - | - | - | - | - | - | - | - | - | - | - |
1996 | - | - | - | - | - | - | - | - | - | - | - | - |
1997 | - | - | - | - | - | - | - | - | - | - | - | - |
1998 | - | - | - | - | - | - | - | - | - | - | - | - |
1999 | - | - | - | - | - | - | - | - | - | - | - | - |
2000 | - | - | - | - | - | - | - | - | - | - | - | - |
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2007 | - | - | - | - | - | - | - | - | - | - | - | - |
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2009 | - | - | - | - | - | - | - | - | - | - | - | - |
2010 | - | - | - | - | - | - | - | - | - | - | - | - |
2011 | - | - | - | - | - | - | - | - | - | - | - | - |
2012 | - | - | - | - | - | - | - | - | - | - | - | - |
2013 | - | - | - | - | - | - | - | - | - | - | - | - |
2014 | - | - | - | - | - | - | - | - | - | - | - | - |
2015 | - | - | - | - | - | - | - | - | - | - | - | - |
2016 | - | - | - | - | - | - | - | - | - | - | - | - |
2017 | - | - | - | - | - | - | - | - | - | - | - | - |
2018 | - | - | - | - | - | - | - | - | - | - | - | - |
2019 | - | - | - | - | - | - | - | - | - | - | - | - |
2020 | - | - | - | - | - | - | - | - | - | - | - | - |
2021 | - | - | - | - | - | - | - | - | - | - | - | - |
2022 | - | - | - | - | - | - | - | - | - | - | - | - |
2023 | - | - | - | - | - | - | - | - | - | - | - | - |
2024 | - | - | - | - | - | - | - | - | - | - | - | - |