year,count
1891,9
1892,18
1893,12
1894,30
1895,42
1896,34
1897,37
1898,61
1899,74
1900,81
1901,42
1902,77
1903,87
1904,59
1905,67
1906,64
1907,129
1908,40
1909,250
1910,141
1911,287
1912,78
1913,111
1914,103
1915,158
1916,90
1917,110
1918,58
1919,227
1920,173
1921,948
1922,224
1923,226
1924,276
1925,258
1926,239
1927,271
1928,219
1929,234
1930,222
1931,339
1932,156
1933,100
1934,341
1935,316
1936,246
1937,153
1938,168
1939,159
1940,230
1941,200
1942,204
1943,154
1944,166
1945,165
1946,275
1947,177
1948,210
1949,213
1950,248
1951,292
1952,311
1953,267
1954,59
1955,196
1956,284
1957,329
1958,162
1959,254
1960,326
1961,343
1962,243
1963,290
1964,290
1965,282
1966,226
1967,784
1968,420
1969,363
1970,390
1971,1539
1972,438
1973,341
1974,397
1975,490
1976,385
1977,224
1978,393
1979,548
1980,429
1981,290
1982,360
1983,522
1984,332
1985,320
1986,1025
1987,408
1988,454
1989,567
1990,689
1991,237
1992,1120
1993,243
1994,290
1995,288
1996,285
1997,240
1998,983
1999,984
2000,44
2001,24
2002,19
2003,21
2004,20
2005,20
2006,20
2007,18
2008,19
2009,28
2010,28