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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1817 | 1 |
| 1877 | 1 |
| 1878 | 3 |
| 1879 | 1 |
| 1880 | 1 |
| 1891 | 2 |
| 1893 | 1 |
| 1897 | 2 |
| 1908 | 1 |
| 1910 | 1 |
| 1911 | 1 |
| 1914 | 2 |
| 1915 | 1 |
| 1917 | 2 |
| 1918 | 1 |
| 1919 | 1 |
| 1920 | 1 |
| 1927 | 1 |
| 1928 | 1 |
| 1932 | 1 |
| 1941 | 3 |
| 1943 | 1 |
| 1944 | 1 |
| 1945 | 6 |
| 1946 | 9 |
| 1947 | 11 |
| 1948 | 16 |
| 1949 | 19 |
| 1950 | 19 |
| 1951 | 16 |
| 1952 | 25 |
| 1953 | 17 |
| 1954 | 19 |
| 1955 | 26 |
| 1956 | 11 |
| 1957 | 16 |
| 1958 | 22 |
| 1959 | 16 |
| 1960 | 11 |
| 1961 | 13 |
| 1962 | 10 |
| 1963 | 8 |
| 1964 | 21 |
| 1965 | 31 |
| 1966 | 26 |
| 1967 | 30 |
| 1968 | 39 |
| 1969 | 40 |
| 1970 | 51 |
| 1971 | 51 |
| 1972 | 61 |
| 1973 | 45 |
| 1974 | 57 |
| 1975 | 64 |
| 1976 | 68 |
| 1977 | 77 |
| 1978 | 93 |
| 1979 | 87 |
| 1980 | 106 |
| 1981 | 116 |
| 1982 | 130 |
| 1983 | 140 |
| 1984 | 142 |
| 1985 | 126 |
| 1986 | 150 |
| 1987 | 201 |
| 1988 | 175 |
| 1989 | 213 |
| 1990 | 220 |
| 1991 | 243 |
| 1992 | 247 |
| 1993 | 247 |
| 1994 | 295 |
| 1995 | 288 |
| 1996 | 278 |
| 1997 | 323 |
| 1998 | 309 |
| 1999 | 339 |
| 2000 | 358 |
| 2001 | 403 |
| 2002 | 335 |
| 2003 | 416 |
| 2004 | 443 |
| 2005 | 513 |
| 2006 | 497 |
| 2007 | 608 |
| 2008 | 635 |
| 2009 | 669 |
| 2010 | 711 |
| 2011 | 781 |
| 2012 | 851 |
| 2013 | 918 |
| 2014 | 952 |
| 2015 | 969 |
| 2016 | 1027 |
| 2017 | 1068 |
| 2018 | 1115 |
| 2019 | 1111 |
| 2020 | 1365 |
| 2021 | 1440 |
| 2022 | 1384 |
| 2023 | 1321 |
| 2024 | 573 |