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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1840 | 1 |
| 1856 | 1 |
| 1867 | 2 |
| 1868 | 2 |
| 1870 | 1 |
| 1872 | 3 |
| 1873 | 1 |
| 1874 | 2 |
| 1876 | 1 |
| 1879 | 3 |
| 1881 | 1 |
| 1882 | 1 |
| 1883 | 1 |
| 1885 | 4 |
| 1891 | 1 |
| 1892 | 1 |
| 1897 | 1 |
| 1904 | 1 |
| 1906 | 1 |
| 1932 | 1 |
| 1948 | 1 |
| 1950 | 3 |
| 1951 | 1 |
| 1954 | 3 |
| 1955 | 1 |
| 1956 | 2 |
| 1957 | 1 |
| 1958 | 4 |
| 1959 | 6 |
| 1962 | 3 |
| 1963 | 4 |
| 1964 | 4 |
| 1965 | 13 |
| 1966 | 3 |
| 1967 | 6 |
| 1968 | 4 |
| 1969 | 4 |
| 1970 | 5 |
| 1971 | 3 |
| 1972 | 10 |
| 1973 | 11 |
| 1974 | 5 |
| 1975 | 6 |
| 1976 | 11 |
| 1977 | 9 |
| 1978 | 2 |
| 1979 | 11 |
| 1980 | 17 |
| 1981 | 25 |
| 1982 | 18 |
| 1983 | 16 |
| 1984 | 25 |
| 1985 | 15 |
| 1986 | 17 |
| 1987 | 11 |
| 1988 | 26 |
| 1989 | 29 |
| 1990 | 32 |
| 1991 | 41 |
| 1992 | 32 |
| 1993 | 34 |
| 1994 | 47 |
| 1995 | 37 |
| 1996 | 43 |
| 1997 | 31 |
| 1998 | 37 |
| 1999 | 40 |
| 2000 | 48 |
| 2001 | 48 |
| 2002 | 46 |
| 2003 | 42 |
| 2004 | 44 |
| 2005 | 53 |
| 2006 | 60 |
| 2007 | 64 |
| 2008 | 74 |
| 2009 | 84 |
| 2010 | 93 |
| 2011 | 80 |
| 2012 | 81 |
| 2013 | 77 |
| 2014 | 106 |
| 2015 | 119 |
| 2016 | 116 |
| 2017 | 115 |
| 2018 | 109 |
| 2019 | 137 |
| 2020 | 154 |
| 2021 | 154 |
| 2022 | 129 |
| 2023 | 119 |
| 2024 | 64 |