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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1856 | 1 |
| 1866 | 1 |
| 1875 | 1 |
| 1887 | 4 |
| 1888 | 2 |
| 1890 | 1 |
| 1907 | 1 |
| 1910 | 1 |
| 1911 | 1 |
| 1912 | 1 |
| 1913 | 2 |
| 1920 | 2 |
| 1955 | 11 |
| 1956 | 1 |
| 1957 | 3 |
| 1958 | 1 |
| 1961 | 1 |
| 1970 | 3 |
| 1971 | 2 |
| 1973 | 1 |
| 1974 | 1 |
| 1978 | 1 |
| 1980 | 8 |
| 1982 | 5 |
| 1983 | 5 |
| 1984 | 5 |
| 1985 | 6 |
| 1986 | 3 |
| 1987 | 3 |
| 1988 | 5 |
| 1990 | 5 |
| 1991 | 4 |
| 1992 | 4 |
| 1993 | 3 |
| 1994 | 9 |
| 1995 | 3 |
| 1997 | 1 |
| 1998 | 3 |
| 2000 | 16 |
| 2001 | 37 |
| 2002 | 56 |
| 2003 | 41 |
| 2004 | 50 |
| 2005 | 60 |
| 2006 | 65 |
| 2007 | 45 |
| 2008 | 37 |
| 2009 | 56 |
| 2010 | 44 |
| 2011 | 43 |
| 2012 | 35 |
| 2013 | 32 |
| 2014 | 35 |
| 2015 | 32 |
| 2016 | 61 |
| 2017 | 59 |
| 2018 | 74 |
| 2019 | 45 |
| 2020 | 55 |
| 2021 | 46 |
| 2022 | 59 |
| 2023 | 41 |
| 2024 | 21 |