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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1831 | 1 |
| 1833 | 1 |
| 1855 | 1 |
| 1858 | 2 |
| 1861 | 1 |
| 1862 | 1 |
| 1864 | 2 |
| 1865 | 4 |
| 1871 | 1 |
| 1873 | 1 |
| 1874 | 2 |
| 1876 | 1 |
| 1879 | 2 |
| 1882 | 2 |
| 1884 | 1 |
| 1891 | 2 |
| 1892 | 1 |
| 1896 | 2 |
| 1899 | 1 |
| 1909 | 1 |
| 1928 | 1 |
| 1981 | 1 |
| 1996 | 1 |
| 1998 | 1 |
| 1999 | 1 |
| 2000 | 2 |
| 2001 | 2 |
| 2002 | 1 |
| 2003 | 2 |
| 2004 | 5 |
| 2005 | 1 |
| 2006 | 2 |
| 2007 | 5 |
| 2008 | 4 |
| 2009 | 4 |
| 2010 | 9 |
| 2011 | 6 |
| 2012 | 6 |
| 2013 | 10 |
| 2014 | 9 |
| 2015 | 4 |
| 2016 | 7 |
| 2017 | 20 |
| 2018 | 12 |
| 2019 | 24 |
| 2020 | 15 |
| 2021 | 20 |
| 2022 | 10 |
| 2023 | 4 |