Year    Y       C
1950   791.8   733.2   
1951   819.0   748.7   
1952   844.3   771.4   
1953   880.0   802.5   
1954   894.0   822.7   
1955   944.5   873.8   
1956   989.4   899.8   
1957  1012.1   919.7   
1958  1028.8   932.9   
1959  1067.2   979.4   
1960  1091.1  1005.1   
1961  1123.2  1025.2   
1962  1170.2  1069.0   
1963  1207.3  1108.4   
1964  1291.0  1170.6   
1965  1365.7  1236.4   
1966  1431.3  1298.9   
1967  1493.2  1337.7   
1968  1551.3  1405.9   
1969  1599.8  1456.7   
1970  1688.1  1492.0   
1971  1728.4  1538.8   
1972  1797.4  1621.9   
1973  1916.3  1689.6   
1974  1896.6  1674.0
1975  1931.7  1711.9
1976  2001.0  1803.9
1977  2066.6  1883.8
1978  2167.4  1961.0
1979  2216.2  2004.4
1980  2214.3  2000.4
1981  2248.6  2024.2
1982  2261.5  2050.7
1983  2334.6  2145.9
1984  2468.4  2239.9
1985  2509.0  2312.6