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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1814 | 2 |
| 1843 | 1 |
| 1858 | 2 |
| 1860 | 1 |
| 1866 | 1 |
| 1870 | 1 |
| 1871 | 2 |
| 1875 | 2 |
| 1877 | 1 |
| 1878 | 1 |
| 1881 | 1 |
| 1886 | 2 |
| 1904 | 1 |
| 1906 | 1 |
| 1907 | 1 |
| 1911 | 1 |
| 1915 | 1 |
| 1916 | 1 |
| 1918 | 1 |
| 1926 | 1 |
| 1933 | 1 |
| 1935 | 2 |
| 1937 | 1 |
| 1961 | 1 |
| 1962 | 1 |
| 1981 | 1 |
| 1993 | 1 |
| 1995 | 3 |
| 1998 | 4 |
| 1999 | 1 |
| 2000 | 3 |
| 2001 | 3 |
| 2002 | 3 |
| 2003 | 5 |
| 2004 | 9 |
| 2005 | 5 |
| 2006 | 7 |
| 2007 | 9 |
| 2008 | 12 |
| 2009 | 12 |
| 2010 | 13 |
| 2011 | 19 |
| 2012 | 19 |
| 2013 | 24 |
| 2014 | 25 |
| 2015 | 9 |
| 2016 | 13 |
| 2017 | 23 |
| 2018 | 18 |
| 2019 | 35 |
| 2020 | 32 |
| 2021 | 29 |
| 2022 | 19 |
| 2023 | 3 |