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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1866 | 1 |
| 1886 | 2 |
| 1914 | 2 |
| 1916 | 2 |
| 1937 | 1 |
| 1941 | 1 |
| 1942 | 1 |
| 1946 | 3 |
| 1947 | 3 |
| 1948 | 4 |
| 1949 | 3 |
| 1950 | 4 |
| 1951 | 6 |
| 1952 | 3 |
| 1953 | 3 |
| 1954 | 4 |
| 1955 | 3 |
| 1956 | 2 |
| 1957 | 6 |
| 1958 | 6 |
| 1959 | 5 |
| 1960 | 3 |
| 1961 | 3 |
| 1962 | 3 |
| 1963 | 5 |
| 1964 | 3 |
| 1965 | 3 |
| 1966 | 3 |
| 1967 | 1 |
| 1968 | 6 |
| 1969 | 8 |
| 1970 | 6 |
| 1971 | 11 |
| 1972 | 3 |
| 1973 | 16 |
| 1974 | 16 |
| 1975 | 17 |
| 1976 | 16 |
| 1977 | 20 |
| 1978 | 19 |
| 1979 | 18 |
| 1980 | 14 |
| 1981 | 23 |
| 1982 | 24 |
| 1983 | 34 |
| 1984 | 35 |
| 1985 | 45 |
| 1986 | 56 |
| 1987 | 57 |
| 1988 | 77 |
| 1989 | 78 |
| 1990 | 55 |
| 1991 | 64 |
| 1992 | 59 |
| 1993 | 73 |
| 1994 | 69 |
| 1995 | 73 |
| 1996 | 55 |
| 1997 | 64 |
| 1998 | 49 |
| 1999 | 61 |
| 2000 | 74 |
| 2001 | 78 |
| 2002 | 93 |
| 2003 | 94 |
| 2004 | 95 |
| 2005 | 121 |
| 2006 | 138 |
| 2007 | 143 |
| 2008 | 143 |
| 2009 | 131 |
| 2010 | 164 |
| 2011 | 168 |
| 2012 | 173 |
| 2013 | 173 |
| 2014 | 199 |
| 2015 | 220 |
| 2016 | 240 |
| 2017 | 185 |
| 2018 | 212 |
| 2019 | 211 |
| 2020 | 243 |
| 2021 | 263 |
| 2022 | 222 |
| 2023 | 219 |
| 2024 | 182 |