1963    -999    -999     5.6     4.4     2.6     2.3     2.8     0.6     1.4     0.4     1.2     1.5
1964     4.0     2.8     4.5     4.6     3.8     1.4     3.2     2.9     3.6     2.6     3.0     2.2
1965     2.7     4.2     5.0     6.2     4.0     4.8     1.4     2.1     1.6     2.7     2.2     1.6
1966     2.4     2.8     3.3     3.2     2.7     3.7     1.7     2.4     2.0     0.4     2.4     2.0
1967     0.6     1.6     2.9     4.1     3.9     3.2     1.3     2.2     1.3     2.8     2.0     3.4
1968     1.7     2.5     4.6     6.2     4.0     2.7     1.8     3.3     1.3     0.7     1.7     2.3
1969     3.0     4.4     2.9     4.4     2.9     2.5     2.6     1.4     2.4     1.6     2.0     1.3
1970     2.6     5.1     4.0     3.5     4.1     3.9     3.2     3.1     0.4     1.8     2.0     1.9
1971     3.4     4.0     3.2     3.8     1.9     2.3     1.9     1.9     1.4     1.8     1.1     0.3
1972     2.5     4.6     4.0     3.7     3.0     1.7     1.3     1.8     1.5     1.3     0.9     1.9
1973     1.3     2.4     2.7     1.6     0.9     1.7     1.2     0.1     1.4     0.4     0.4     0.6
1974     2.6     2.1     3.6     5.5     4.3     3.3     4.0     1.7     3.4     1.9     0.4     2.1
1975     2.3     3.8     4.1     2.9     1.6     1.7     2.3     1.8     1.0     2.7     1.6     0.6
1976     2.1     2.6     3.9     2.6     2.7     0.9     0.6     2.2     1.3     0.2     1.0     1.2
1977     1.7     2.8     3.0     2.5     1.7     2.0     1.7     0.9     2.5     3.1     0.9     0.6
1978     1.5     2.7     1.1     1.7     2.7     2.0     2.8     1.7     2.5     2.5     1.0     1.2
1979     3.2     4.0     5.8     5.9     4.5     2.4     3.4     2.3     0.7     1.6     1.7     1.3
1980     3.7     4.5     5.0     3.7     4.4     3.5     1.5     2.7     1.6     2.5     1.0     3.7
1981     1.9     5.0     4.0     4.0     2.9     3.9     2.4     2.7     1.9     4.5     3.0     4.0
1982     2.4     1.2     6.2     3.9     2.8     2.8     2.2     1.4     0.6     1.5     1.0     0.2
1983     0.2     2.2     4.3     1.5     2.9     3.0     2.9     1.3     3.6     2.7     3.2     1.3
1984     1.2     2.3     6.1     4.3     3.1     1.8     1.1     1.6     1.8     2.1     3.0     1.1
1985     2.5     3.9     3.0     4.7     2.9     1.9     5.0     1.9     4.1     1.5     3.3     3.7
1986     1.7     1.5     2.6     4.6     1.5     3.1     1.8     1.5     2.5     2.0     2.2     3.0
1987     2.2     2.5     3.8     4.2     2.7     1.8     0.7     0.7     1.2     1.3     2.7     1.1
1988     1.7     2.5     1.4     1.7     1.8     1.2     0.7     0.7     0.9     0.2     1.7     1.4
1989     1.9     3.2     2.7     2.1     1.2     1.6     1.9     0.8     0.4     1.7     0.4     1.3
1990     2.2     2.3     3.1     1.8     1.2     1.3     3.0     1.4     0.6     2.1    -999     1.8
1991     4.1     2.4     3.8     1.6     3.9     2.6     1.9     2.0     1.9     3.4     1.6     3.1
1992     2.4     2.0     3.9     4.2     3.2     1.9     2.5     2.3     1.4     1.3     1.7     1.0
1993     1.0     2.5     3.2     4.8     3.3     2.1     2.6     1.7     3.2     1.1     2.9     3.6
1994     1.6     3.5     4.2     3.2     3.5     1.0     2.5     1.8     1.4     1.5     0.8     1.3
1995     2.4     2.3     2.8     3.6     4.1     1.3     1.0     1.6     1.9     3.4     2.5     2.3
1996     1.9     3.7     5.2     4.6    -999    -999     2.5     2.0     2.0     2.9     2.0     1.4
1997     1.4     4.0     4.3     5.9     3.3     2.8     2.0     4.6     1.5     4.4     1.6     3.4
1998     4.8     4.8     6.3     2.5     2.8     2.2     3.6     0.5     4.3     2.6     0.6     2.4
1999     3.4     1.5     2.9     2.3     3.8     0.8    -999    -999    -999    -999    -999    -999