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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1841 | 1 |
| 1842 | 1 |
| 1843 | 1 |
| 1844 | 1 |
| 1845 | 10 |
| 1846 | 7 |
| 1847 | 2 |
| 1849 | 1 |
| 1850 | 4 |
| 1851 | 1 |
| 1852 | 1 |
| 1871 | 1 |
| 1873 | 2 |
| 1875 | 1 |
| 1968 | 2 |
| 1970 | 2 |
| 1971 | 1 |
| 1994 | 1 |
| 1996 | 1 |
| 1999 | 1 |
| 2000 | 1 |
| 2001 | 1 |
| 2002 | 2 |
| 2003 | 2 |
| 2004 | 3 |
| 2005 | 4 |
| 2006 | 3 |
| 2007 | 2 |
| 2008 | 1 |
| 2009 | 4 |
| 2010 | 3 |
| 2011 | 9 |
| 2012 | 4 |
| 2013 | 5 |
| 2014 | 3 |
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 6 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 13 |
| 2021 | 3 |
| 2022 | 5 |
| 2023 | 4 |
| 2024 | 5 |