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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1851 | 1 |
| 1860 | 1 |
| 1861 | 1 |
| 1873 | 1 |
| 1885 | 2 |
| 1886 | 1 |
| 1888 | 1 |
| 1890 | 1 |
| 1891 | 1 |
| 1894 | 2 |
| 1895 | 1 |
| 1907 | 1 |
| 1910 | 2 |
| 1911 | 1 |
| 1912 | 2 |
| 1917 | 1 |
| 1918 | 1 |
| 1923 | 1 |
| 1925 | 1 |
| 1926 | 1 |
| 1928 | 1 |
| 1930 | 1 |
| 1939 | 1 |
| 1941 | 1 |
| 1943 | 1 |
| 1944 | 1 |
| 1945 | 13 |
| 1946 | 20 |
| 1947 | 13 |
| 1948 | 13 |
| 1949 | 17 |
| 1950 | 20 |
| 1951 | 35 |
| 1952 | 39 |
| 1953 | 66 |
| 1954 | 64 |
| 1955 | 45 |
| 1956 | 52 |
| 1957 | 57 |
| 1958 | 38 |
| 1959 | 48 |
| 1960 | 41 |
| 1961 | 41 |
| 1962 | 74 |
| 1963 | 123 |
| 1964 | 177 |
| 1965 | 125 |
| 1966 | 122 |
| 1967 | 169 |
| 1968 | 211 |
| 1969 | 238 |
| 1970 | 279 |
| 1971 | 269 |
| 1972 | 301 |
| 1973 | 310 |
| 1974 | 329 |
| 1975 | 339 |
| 1976 | 341 |
| 1977 | 291 |
| 1978 | 295 |
| 1979 | 310 |
| 1980 | 321 |
| 1981 | 335 |
| 1982 | 369 |
| 1983 | 391 |
| 1984 | 486 |
| 1985 | 493 |
| 1986 | 526 |
| 1987 | 498 |
| 1988 | 519 |
| 1989 | 614 |
| 1990 | 619 |
| 1991 | 643 |
| 1992 | 640 |
| 1993 | 609 |
| 1994 | 680 |
| 1995 | 661 |
| 1996 | 678 |
| 1997 | 674 |
| 1998 | 652 |
| 1999 | 705 |
| 2000 | 758 |
| 2001 | 748 |
| 2002 | 755 |
| 2003 | 734 |
| 2004 | 779 |
| 2005 | 818 |
| 2006 | 901 |
| 2007 | 869 |
| 2008 | 876 |
| 2009 | 863 |
| 2010 | 962 |
| 2011 | 985 |
| 2012 | 1070 |
| 2013 | 1129 |
| 2014 | 1199 |
| 2015 | 1207 |
| 2016 | 1264 |
| 2017 | 1250 |
| 2018 | 1384 |
| 2019 | 1371 |
| 2020 | 1425 |
| 2021 | 1498 |
| 2022 | 1498 |
| 2023 | 1457 |
| 2024 | 548 |