← All namesClay
Raw counts
| Year | Count |
|---|
| 1910 | 10 |
| 1911 | 28 |
| 1912 | 38 |
| 1913 | 45 |
| 1914 | 80 |
| 1915 | 105 |
| 1916 | 122 |
| 1917 | 124 |
| 1918 | 176 |
| 1919 | 143 |
| 1920 | 175 |
| 1921 | 192 |
| 1922 | 224 |
| 1923 | 148 |
| 1924 | 171 |
| 1925 | 189 |
| 1926 | 143 |
| 1927 | 187 |
| 1928 | 128 |
| 1929 | 78 |
| 1930 | 129 |
| 1931 | 80 |
| 1932 | 122 |
| 1933 | 130 |
| 1934 | 98 |
| 1935 | 95 |
| 1936 | 104 |
| 1937 | 110 |
| 1938 | 93 |
| 1939 | 120 |
| 1940 | 108 |
| 1941 | 81 |
| 1942 | 96 |
| 1943 | 119 |
| 1944 | 76 |
| 1945 | 48 |
| 1946 | 45 |
| 1947 | 128 |
| 1948 | 168 |
| 1949 | 154 |
| 1950 | 107 |
| 1951 | 169 |
| 1952 | 203 |
| 1953 | 289 |
| 1954 | 293 |
| 1955 | 559 |
| 1956 | 662 |
| 1957 | 718 |
| 1958 | 898 |
| 1959 | 1,061 |
| 1960 | 1,165 |
| 1961 | 1,046 |
| 1962 | 884 |
| 1963 | 915 |
| 1964 | 712 |
| 1965 | 567 |
| 1966 | 461 |
| 1967 | 438 |
| 1968 | 472 |
| 1969 | 520 |
| 1970 | 472 |
| 1971 | 578 |
| 1972 | 488 |
| 1973 | 548 |
| 1974 | 438 |
| 1975 | 525 |
| 1976 | 505 |
| 1977 | 493 |
| 1978 | 368 |
| 1979 | 372 |
| 1980 | 351 |
| 1981 | 303 |
| 1982 | 376 |
| 1983 | 393 |
| 1984 | 378 |
| 1985 | 435 |
| 1986 | 448 |
| 1987 | 530 |
| 1988 | 522 |
| 1989 | 469 |
| 1990 | 489 |
| 1991 | 470 |
| 1992 | 512 |
| 1993 | 609 |
| 1994 | 874 |
| 1995 | 872 |
| 1996 | 749 |
| 1997 | 762 |
| 1998 | 715 |
| 1999 | 704 |
| 2000 | 759 |
| 2001 | 670 |
| 2002 | 657 |
| 2003 | 651 |
| 2004 | 486 |
| 2005 | 367 |
| 2006 | 331 |
| 2007 | 297 |
| 2008 | 329 |
| 2009 | 188 |
| 2010 | 285 |
| 2011 | 307 |
| 2012 | 337 |
| 2013 | 317 |
| 2014 | 256 |
| 2015 | 437 |
| 2016 | 419 |
| 2017 | 432 |
| 2018 | 373 |
| 2019 | 407 |
| 2020 | 430 |
| 2021 | 549 |
| 2022 | 510 |
| 2023 | 541 |
| 2024 | 592 |