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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1842 | 1 |
| 1845 | 1 |
| 1908 | 1 |
| 1915 | 1 |
| 1918 | 1 |
| 1921 | 1 |
| 1930 | 2 |
| 1931 | 2 |
| 1933 | 1 |
| 1938 | 1 |
| 1940 | 1 |
| 1949 | 1 |
| 1978 | 1 |
| 1994 | 1 |
| 1995 | 1 |
| 1999 | 1 |
| 2001 | 2 |
| 2002 | 2 |
| 2003 | 1 |
| 2004 | 1 |
| 2005 | 1 |
| 2006 | 2 |
| 2008 | 3 |
| 2009 | 2 |
| 2010 | 1 |
| 2011 | 5 |
| 2012 | 2 |
| 2013 | 4 |
| 2014 | 10 |
| 2015 | 13 |
| 2016 | 14 |
| 2017 | 10 |
| 2018 | 13 |
| 2019 | 20 |
| 2020 | 16 |
| 2021 | 11 |
| 2022 | 14 |
| 2023 | 8 |