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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1857 | 1 |
| 1859 | 1 |
| 1869 | 4 |
| 1870 | 2 |
| 1875 | 1 |
| 1877 | 1 |
| 1883 | 1 |
| 1884 | 2 |
| 1887 | 4 |
| 1888 | 1 |
| 1893 | 1 |
| 1898 | 1 |
| 1901 | 1 |
| 1902 | 1 |
| 1906 | 1 |
| 1917 | 1 |
| 1923 | 1 |
| 1928 | 1 |
| 1934 | 1 |
| 1936 | 2 |
| 1937 | 1 |
| 1938 | 1 |
| 1941 | 2 |
| 1942 | 1 |
| 1943 | 2 |
| 1944 | 3 |
| 1945 | 8 |
| 1946 | 21 |
| 1947 | 32 |
| 1948 | 39 |
| 1949 | 32 |
| 1950 | 42 |
| 1951 | 49 |
| 1952 | 51 |
| 1953 | 47 |
| 1954 | 46 |
| 1955 | 63 |
| 1956 | 59 |
| 1957 | 51 |
| 1958 | 58 |
| 1959 | 58 |
| 1960 | 66 |
| 1961 | 72 |
| 1962 | 91 |
| 1963 | 97 |
| 1964 | 103 |
| 1965 | 72 |
| 1966 | 81 |
| 1967 | 89 |
| 1968 | 97 |
| 1969 | 104 |
| 1970 | 124 |
| 1971 | 125 |
| 1972 | 143 |
| 1973 | 143 |
| 1974 | 130 |
| 1975 | 143 |
| 1976 | 132 |
| 1977 | 121 |
| 1978 | 112 |
| 1979 | 103 |
| 1980 | 111 |
| 1981 | 169 |
| 1982 | 137 |
| 1983 | 132 |
| 1984 | 155 |
| 1985 | 185 |
| 1986 | 183 |
| 1987 | 195 |
| 1988 | 191 |
| 1989 | 208 |
| 1990 | 216 |
| 1991 | 201 |
| 1992 | 170 |
| 1993 | 179 |
| 1994 | 188 |
| 1995 | 184 |
| 1996 | 211 |
| 1997 | 278 |
| 1998 | 322 |
| 1999 | 376 |
| 2000 | 550 |
| 2001 | 597 |
| 2002 | 568 |
| 2003 | 640 |
| 2004 | 757 |
| 2005 | 728 |
| 2006 | 821 |
| 2007 | 845 |
| 2008 | 982 |
| 2009 | 970 |
| 2010 | 1129 |
| 2011 | 1240 |
| 2012 | 1236 |
| 2013 | 1240 |
| 2014 | 1401 |
| 2015 | 1425 |
| 2016 | 1489 |
| 2017 | 1576 |
| 2018 | 1689 |
| 2019 | 1733 |
| 2020 | 2045 |
| 2021 | 2177 |
| 2022 | 2190 |
| 2023 | 2160 |
| 2024 | 908 |