1950 5340 1491 1951 5371 1471 1952 4957 1464 1953 4966 1502 1954 4526 1484 1955 4815 1851 1956 4825 1685 1957 4444 1745 1958 4207 1702 1959 4781 2065 1960 4657 1817 1961 4506 2064 1962 4629 2418 1963 4465 2788 1964 4615 3174 1965 4923 3512 1966 5016 3989 1967 4747 4244 1968 4489 5306 1969 4256 5550 1970 4102 5500 1971 4185 6345 1972 4091 7566 1973 3819 8665 1974 3412 7700 1975 3141 7416 1976 3543 8053 1977 3296 8889 1978 3195 9236