Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1948 | - | - | - | 6.2 | 4.5 | 3.3 | 3.6 | 2.1 | 2.6 | 3.6 | 4.5 | 5.4 |
1949 | 6.4 | 6.3 | 6.8 | 5.6 | 5.5 | 4.7 | 3.1 | 2.3 | 3.2 | 4.0 | 4.9 | 6.0 |
1950 | 6.2 | 6.9 | 7.3 | 7.5 | 5.1 | 2.8 | 4.0 | 3.6 | 4.8 | 3.9 | 5.7 | 6.2 |
1951 | 6.4 | 7.3 | 7.4 | 5.3 | 4.4 | 4.7 | 3.1 | 3.7 | 3.1 | 3.8 | 4.6 | 5.1 |
1952 | 5.8 | 6.5 | 6.5 | 6.0 | 4.9 | 4.8 | 4.3 | 3.4 | 2.9 | 4.7 | 5.0 | 6.3 |
1953 | 6.9 | 7.2 | 7.6 | 6.3 | 5.4 | 4.5 | 4.0 | 3.7 | 3.8 | 5.2 | 5.9 | 6.3 |
1954 | 7.2 | 7.6 | 6.9 | 5.7 | 4.6 | 3.6 | 2.8 | 4.1 | 4.1 | 4.5 | 5.2 | 5.8 |
1955 | 6.4 | 6.9 | 7.2 | 5.3 | 4.4 | 3.8 | 3.4 | 3.7 | 3.4 | 4.2 | 4.6 | 6.3 |
1956 | 8.1 | 8.1 | 7.7 | 5.4 | 3.7 | 3.3 | 3.6 | 2.1 | 2.8 | 4.6 | 5.3 | 4.7 |
1957 | 6.1 | 7.3 | 7.5 | 7.4 | 6.2 | 3.5 | 3.3 | 3.9 | 3.9 | 5.0 | 4.8 | 5.7 |
1958 | 7.8 | 7.8 | 6.7 | 5.6 | 4.6 | 3.7 | 3.6 | 2.9 | 2.4 | 3.4 | 5.8 | 6.1 |
1959 | 6.7 | 7.0 | 7.4 | 6.2 | 5.4 | 4.6 | 4.1 | 3.1 | 3.2 | 4.5 | 4.8 | 5.1 |
1960 | 6.2 | 7.8 | 7.3 | 5.5 | 3.9 | 4.2 | 3.4 | 2.6 | 2.9 | 4.3 | 5.4 | 6.1 |
1961 | 6.6 | 6.8 | 6.8 | 5.5 | 3.7 | 5.0 | 4.1 | 4.6 | 3.9 | 3.8 | 5.0 | 6.6 |
1962 | 6.5 | 7.2 | 6.7 | 6.1 | 5.1 | 3.4 | 3.5 | 4.7 | 3.2 | 4.7 | 5.6 | 6.0 |
1963 | 7.2 | 8.4 | 7.7 | 6.1 | 4.5 | 5.1 | 4.1 | 2.6 | 3.5 | 5.1 | 5.2 | 6.9 |
1964 | 6.8 | 7.2 | 6.6 | 6.4 | 5.5 | 3.8 | 4.1 | 3.1 | 3.6 | 4.2 | 4.3 | 5.3 |
1965 | 6.9 | 6.8 | 6.8 | 6.6 | 4.7 | 4.9 | 4.3 | 3.5 | 4.1 | 4.0 | 5.6 | 6.2 |
1966 | 6.7 | 6.2 | 6.9 | 4.8 | 3.8 | - | 4.0 | 3.3 | 3.3 | 3.5 | 5.7 | 6.7 |
1967 | 6.3 | 6.2 | 6.7 | 6.0 | 6.0 | 4.5 | 2.6 | 4.2 | 3.2 | 5.2 | 4.9 | 5.9 |
1968 | 6.4 | 7.3 | 6.5 | 4.6 | 4.1 | 4.1 | 3.7 | 2.9 | 3.8 | 3.5 | 4.8 | 5.3 |
1969 | 6.4 | 6.9 | 7.2 | 5.6 | 5.2 | 4.1 | 4.5 | 3.9 | 3.3 | 3.8 | 4.5 | 5.6 |
1970 | 7.3 | 8.3 | 7.7 | 5.1 | 5.6 | 5.2 | 3.6 | 3.4 | 2.6 | 3.7 | 4.4 | 6.0 |
1971 | 7.6 | 8.3 | 5.8 | 8.3 | 4.6 | 4.0 | 3.7 | 3.2 | 3.1 | 4.5 | 5.3 | 6.0 |
1972 | 7.8 | 7.5 | 7.9 | 6.0 | 5.3 | 5.8 | 3.0 | 2.9 | 4.0 | 4.5 | 6.9 | 5.8 |
1973 | 6.9 | 8.5 | 7.8 | 6.7 | 4.5 | 4.7 | 4.9 | 3.8 | 3.1 | 3.8 | 4.0 | 6.3 |
1974 | 6.8 | 7.2 | 7.1 | 6.3 | 5.6 | 5.4 | 4.4 | 3.3 | 4.1 | 5.0 | 4.9 | 6.1 |
1975 | 6.1 | 7.0 | 6.5 | 5.6 | 4.2 | 4.6 | 3.6 | 3.4 | 3.6 | 5.2 | 6.0 | 6.2 |
1976 | 7.7 | 8.6 | 7.4 | 6.1 | 5.5 | 4.9 | 2.9 | 3.5 | 3.8 | 3.7 | 4.9 | 5.5 |
1977 | 7.4 | 8.0 | 7.3 | 5.3 | 5.2 | 3.8 | 4.5 | 3.3 | 4.1 | 4.2 | 5.6 | 6.7 |
1978 | 7.3 | 7.1 | 7.5 | 6.6 | 4.6 | 3.6 | 3.7 | 3.2 | 4.0 | 4.2 | 5.0 | 6.7 |
1979 | 7.4 | 7.9 | 8.1 | 6.1 | 9.9 | 7.7 | 5.1 | 3.1 | 3.1 | 3.5 | 5.5 | 5.7 |
1980 | 7.4 | 7.7 | 7.6 | 6.8 | 6.4 | 4.9 | 4.1 | 4.3 | 4.0 | 4.7 | 4.8 | 6.5 |
1981 | 6.7 | 7.6 | 7.6 | 6.3 | 6.2 | 4.7 | 4.8 | 3.3 | 5.0 | 5.4 | 5.7 | 6.8 |
1982 | 7.2 | 7.8 | 7.0 | 6.7 | 5.8 | 5.8 | 4.1 | 4.5 | 3.6 | 4.3 | 5.1 | 6.6 |
1983 | 7.4 | 8.1 | 7.4 | 6.8 | 5.5 | 5.5 | 5.0 | 3.7 | 4.4 | 9.1 | 5.1 | 6.4 |
1984 | 7.5 | 8.7 | 8.4 | 7.2 | 6.2 | 5.2 | 4.2 | 2.9 | 4.6 | 5.1 | 5.8 | 6.4 |
1985 | 7.8 | 8.7 | 8.1 | 8.1 | 7.8 | 5.4 | 5.1 | 4.5 | 4.5 | 4.7 | 5.7 | 6.7 |
1986 | 7.3 | 8.3 | 8.2 | 7.8 | 4.4 | 4.7 | 4.6 | 4.0 | 4.8 | 5.4 | 6.4 | 7.1 |
1987 | 7.7 | 8.1 | 7.7 | 7.1 | 5.5 | 5.2 | 5.9 | 4.7 | 4.4 | 5.2 | 5.9 | 6.4 |
1988 | - | 8.1 | 7.6 | 6.8 | 5.0 | 4.3 | 4.1 | 2.8 | 3.9 | 4.4 | 5.4 | 6.0 |
1989 | 7.2 | 7.5 | 8.6 | 6.2 | 5.0 | 4.4 | 4.6 | 4.0 | 3.9 | 4.5 | 5.7 | 7.1 |
1990 | 8.9 | 8.4 | 7.4 | 7.3 | 5.1 | 3.7 | 5.0 | 4.4 | - | 4.8 | 5.3 | 7.6 |
1991 | 7.8 | 8.7 | - | 7.5 | 6.5 | 4.5 | 5.1 | 3.8 | 4.0 | 5.2 | 6.1 | 6.7 |
1992 | 7.2 | 9.2 | - | 8.2 | 5.4 | 4.3 | 4.3 | 3.8 | 3.6 | 4.3 | 6.0 | 6.5 |
1993 | 7.7 | 9.2 | 7.8 | 7.4 | 5.2 | 4.6 | 5.2 | 4.4 | 4.6 | 4.8 | 6.4 | 7.3 |
1994 | 7.1 | 8.1 | 7.8 | 6.6 | 6.4 | 4.9 | 4.5 | 3.6 | 3.3 | 5.0 | 5.3 | - |
1995 | 8.6 | 8.2 | 7.8 | 5.7 | 5.7 | 3.9 | 3.3 | 3.4 | 4.6 | 4.5 | 5.5 | 7.3 |
1996 | 8.2 | 8.4 | 7.9 | 7.9 | 7.2 | 5.9 | 5.5 | 4.8 | 4.3 | 5.7 | 6.8 | 7.1 |
1997 | 8.6 | 9.0 | 8.2 | 7.3 | 6.5 | 4.9 | 5.4 | 4.7 | 5.3 | 6.2 | 5.9 | 7.7 |
1998 | 8.6 | 8.0 | 8.1 | 7.4 | 5.9 | 4.8 | 4.6 | 4.2 | 4.1 | 5.6 | 7.7 | 8.2 |
1999 | 9.1 | 8.4 | 8.9 | 8.0 | 5.6 | 4.7 | 5.8 | 4.5 | 5.0 | 6.1 | 6.7 | 6.9 |
2000 | 8.1 | 8.8 | 8.0 | 8.1 | 7.4 | 6.0 | 5.7 | 4.2 | 3.5 | 4.6 | 7.4 | 6.4 |
2001 | 8.4 | 8.9 | 8.0 | 6.1 | 6.3 | 5.2 | 4.9 | 4.7 | 4.5 | - | - | 6.8 |
2002 | 8.8 | 8.5 | 8.0 | 6.9 | 6.5 | 4.8 | 4.9 | 5.5 | 3.9 | 5.8 | 5.8 | 6.4 |
2003 | 7.3 | 8.3 | 8.1 | 7.0 | 6.1 | 5.4 | 4.0( 97) | 4.1 | 4.1 | 5.7 | 6.0 | 6.9 |
2004 | 8.0 | 8.7 | 8.4 | 8.2( 85) | 6.0( 81) | 6.8( 97) | 5.1( 94) | 4.9( 79) | 2.5( 97) | 5.5( 60) | 7.7( 77) | 9.8( 98) |
2005 | 8.9( 95) | 9.9( 97) | 9.0( 87) | 6.5( 87) | 5.5( 98) | 4.5( 87) | 4.2( 92) | 3.4( 94) | 4.4( 84) | 5.8( 83) | 5.9( 91) | 5.0( 88) |
2006 | 7.9( 97) | 8.0( 96) | 7.3( 96) | 5.8( 98) | 5.3( 85) | 4.0 | 4.3( 90) | 4.0( 96) | 4.4( 92) | 5.5( 86) | 5.6( 92) | 6.9( 90) |
2007 | 7.3( 98) | 8.1( 96) | 7.1( 89) | 8.3( 94) | 4.3( 83) | 4.0( 85) | 4.5( 94) | 3.7( 97) | 4.6( 99) | 4.1( 96) | 5.0( 98) | 7.3( 99) |
2008 | 7.2( 98) | 7.2( 99) | 6.4( 98) | 5.3( 92) | 5.8( 99) | 4.7( 86) | 3.6( 76) | 2.9(101) | 3.8( 88) | 4.6( 97) | 5.2( 98) | 5.9( 98) |
2009 | 6.6( 97) | - | - | - | - | - | - | - | - | - | - | - |