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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1855 | 1 |
| 1865 | 1 |
| 1895 | 1 |
| 1896 | 1 |
| 1899 | 2 |
| 1909 | 2 |
| 1910 | 1 |
| 1911 | 2 |
| 1912 | 3 |
| 1913 | 1 |
| 1914 | 3 |
| 1915 | 3 |
| 1916 | 1 |
| 1917 | 2 |
| 1918 | 1 |
| 1920 | 1 |
| 1921 | 3 |
| 1922 | 3 |
| 1923 | 4 |
| 1924 | 2 |
| 1925 | 1 |
| 1926 | 2 |
| 1928 | 3 |
| 1931 | 1 |
| 1934 | 1 |
| 1935 | 2 |
| 1938 | 1 |
| 1939 | 1 |
| 1940 | 1 |
| 1941 | 1 |
| 1942 | 1 |
| 1945 | 2 |
| 1946 | 1 |
| 1954 | 3 |
| 1956 | 1 |
| 1957 | 3 |
| 1958 | 1 |
| 1960 | 1 |
| 1961 | 1 |
| 1966 | 2 |
| 1967 | 1 |
| 1968 | 2 |
| 1969 | 2 |
| 1970 | 6 |
| 1971 | 1 |
| 1972 | 4 |
| 1973 | 2 |
| 1974 | 2 |
| 1975 | 7 |
| 1976 | 3 |
| 1977 | 8 |
| 1978 | 5 |
| 1979 | 7 |
| 1980 | 7 |
| 1981 | 8 |
| 1982 | 14 |
| 1983 | 8 |
| 1984 | 25 |
| 1985 | 25 |
| 1986 | 24 |
| 1987 | 20 |
| 1988 | 21 |
| 1989 | 16 |
| 1990 | 14 |
| 1991 | 23 |
| 1992 | 23 |
| 1993 | 23 |
| 1994 | 26 |
| 1995 | 25 |
| 1996 | 30 |
| 1997 | 28 |
| 1998 | 25 |
| 1999 | 22 |
| 2000 | 32 |
| 2001 | 23 |
| 2002 | 16 |
| 2003 | 29 |
| 2004 | 34 |
| 2005 | 26 |
| 2006 | 39 |
| 2007 | 32 |
| 2008 | 39 |
| 2009 | 38 |
| 2010 | 39 |
| 2011 | 39 |
| 2012 | 43 |
| 2013 | 44 |
| 2014 | 45 |
| 2015 | 54 |
| 2016 | 59 |
| 2017 | 69 |
| 2018 | 84 |
| 2019 | 71 |
| 2020 | 68 |
| 2021 | 53 |
| 2022 | 44 |
| 2023 | 59 |