Years

Year	File Count
1901	51
1902	50
1903	49
1904	50
1905	49
1906	50
1907	47
1908	48
1909	50
1910	50
1911	48
1912	44
1913	50
1914	52
1915	55
1916	50
1917	52
1918	52
1919	44
1920	53
1921	45
1922	53
1923	47
1924	51
1925	50
1926	53
1927	55
1928	52
1929	51
1930	63
1931	64
1932	59
1933	61
1934	59
1935	58
1936	60
1937	64
1938	61
1939	59
1940	59
1941	63
1942	60
1943	64
1944	67
1945	61
1946	58
1947	61
1948	63
1949	63
1950	67
1951	63
1952	60
1953	65
1954	64
1955	63
1956	63
1957	63
1958	60
1959	63
1960	66
1961	63
1962	58
1963	60
1964	63
1965	62
1966	63
1967	59
1968	56
1969	56
1970	58
1971	64
1972	59
1973	59
1974	59
1975	67
1976	64
1977	61
1978	63
1979	66
1980	65
1981	60
1982	62
1983	61
1984	64
1985	63
1986	63
1987	67
1988	64
1989	58
1990	60
1991	62
1992	64
1993	57
1994	63
1995	64
1996	31
1997	21
1998	21