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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1873 | 1 |
| 1875 | 1 |
| 1883 | 1 |
| 1885 | 2 |
| 1887 | 1 |
| 1889 | 2 |
| 1891 | 1 |
| 1893 | 1 |
| 1895 | 1 |
| 1896 | 1 |
| 1897 | 4 |
| 1898 | 2 |
| 1899 | 6 |
| 1904 | 1 |
| 1906 | 1 |
| 1907 | 1 |
| 1908 | 4 |
| 1910 | 2 |
| 1911 | 3 |
| 1912 | 1 |
| 1914 | 3 |
| 1916 | 1 |
| 1917 | 1 |
| 1918 | 1 |
| 1951 | 1 |
| 1952 | 1 |
| 1957 | 1 |
| 1959 | 3 |
| 1960 | 4 |
| 1961 | 1 |
| 1962 | 4 |
| 1963 | 2 |
| 1965 | 3 |
| 1967 | 1 |
| 1969 | 1 |
| 1970 | 3 |
| 1971 | 4 |
| 1972 | 10 |
| 1973 | 11 |
| 1974 | 11 |
| 1975 | 14 |
| 1976 | 13 |
| 1977 | 14 |
| 1978 | 7 |
| 1979 | 11 |
| 1980 | 16 |
| 1981 | 11 |
| 1982 | 16 |
| 1983 | 17 |
| 1984 | 10 |
| 1985 | 14 |
| 1986 | 16 |
| 1987 | 15 |
| 1988 | 15 |
| 1989 | 29 |
| 1990 | 32 |
| 1991 | 27 |
| 1992 | 29 |
| 1993 | 39 |
| 1994 | 51 |
| 1995 | 47 |
| 1996 | 44 |
| 1997 | 49 |
| 1998 | 48 |
| 1999 | 52 |
| 2000 | 52 |
| 2001 | 54 |
| 2002 | 44 |
| 2003 | 46 |
| 2004 | 73 |
| 2005 | 84 |
| 2006 | 73 |
| 2007 | 81 |
| 2008 | 70 |
| 2009 | 86 |
| 2010 | 77 |
| 2011 | 70 |
| 2012 | 79 |
| 2013 | 82 |
| 2014 | 107 |
| 2015 | 87 |
| 2016 | 77 |
| 2017 | 92 |
| 2018 | 93 |
| 2019 | 110 |
| 2020 | 115 |
| 2021 | 115 |
| 2022 | 109 |