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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1820 | 1 |
| 1848 | 1 |
| 1854 | 1 |
| 1862 | 1 |
| 1863 | 1 |
| 1864 | 2 |
| 1876 | 1 |
| 1879 | 1 |
| 1887 | 1 |
| 1888 | 1 |
| 1889 | 1 |
| 1899 | 1 |
| 1914 | 1 |
| 1919 | 1 |
| 1920 | 10 |
| 1921 | 5 |
| 1924 | 1 |
| 1930 | 1 |
| 1935 | 3 |
| 1941 | 1 |
| 1943 | 1 |
| 1944 | 1 |
| 1945 | 1 |
| 1946 | 1 |
| 1948 | 1 |
| 1967 | 1 |
| 1970 | 1 |
| 1979 | 1 |
| 1980 | 1 |
| 1981 | 2 |
| 1984 | 1 |
| 1990 | 2 |
| 1993 | 2 |
| 1995 | 1 |
| 1998 | 1 |
| 1999 | 1 |
| 2000 | 4 |
| 2001 | 1 |
| 2002 | 4 |
| 2004 | 1 |
| 2005 | 3 |
| 2006 | 3 |
| 2007 | 2 |
| 2008 | 5 |
| 2009 | 3 |
| 2010 | 8 |
| 2011 | 7 |
| 2012 | 6 |
| 2013 | 4 |
| 2014 | 17 |
| 2015 | 10 |
| 2016 | 9 |
| 2017 | 10 |
| 2018 | 12 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 5 |
| 2022 | 6 |
| 2023 | 1 |