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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1846 | 1 |
| 1890 | 1 |
| 1894 | 1 |
| 1895 | 1 |
| 1899 | 2 |
| 1909 | 1 |
| 1910 | 1 |
| 1913 | 1 |
| 1916 | 1 |
| 1931 | 1 |
| 1937 | 1 |
| 1939 | 2 |
| 1940 | 1 |
| 1941 | 1 |
| 1948 | 1 |
| 1950 | 1 |
| 1954 | 2 |
| 1956 | 1 |
| 1965 | 2 |
| 1967 | 1 |
| 1968 | 1 |
| 1969 | 4 |
| 1970 | 4 |
| 1971 | 7 |
| 1972 | 6 |
| 1973 | 4 |
| 1974 | 2 |
| 1975 | 8 |
| 1976 | 4 |
| 1977 | 6 |
| 1978 | 9 |
| 1979 | 6 |
| 1980 | 2 |
| 1981 | 6 |
| 1982 | 8 |
| 1983 | 8 |
| 1984 | 7 |
| 1985 | 17 |
| 1986 | 14 |
| 1987 | 12 |
| 1988 | 12 |
| 1989 | 18 |
| 1990 | 22 |
| 1991 | 34 |
| 1992 | 26 |
| 1993 | 15 |
| 1994 | 34 |
| 1995 | 24 |
| 1996 | 27 |
| 1997 | 26 |
| 1998 | 23 |
| 1999 | 22 |
| 2000 | 17 |
| 2001 | 17 |
| 2002 | 17 |
| 2003 | 26 |
| 2004 | 20 |
| 2005 | 13 |
| 2006 | 30 |
| 2007 | 32 |
| 2008 | 43 |
| 2009 | 57 |
| 2010 | 48 |
| 2011 | 47 |
| 2012 | 66 |
| 2013 | 64 |
| 2014 | 68 |
| 2015 | 113 |
| 2016 | 107 |
| 2017 | 132 |
| 2018 | 105 |
| 2019 | 121 |
| 2020 | 113 |
| 2021 | 181 |
| 2022 | 170 |
| 2023 | 190 |
| 2024 | 70 |