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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1847 | 1 |
| 1889 | 1 |
| 1893 | 2 |
| 1983 | 1 |
| 1989 | 1 |
| 1998 | 1 |
| 2002 | 12 |
| 2003 | 12 |
| 2004 | 10 |
| 2005 | 17 |
| 2006 | 23 |
| 2007 | 17 |
| 2008 | 22 |
| 2009 | 22 |
| 2010 | 11 |
| 2011 | 22 |
| 2012 | 30 |
| 2013 | 19 |
| 2014 | 19 |
| 2015 | 21 |
| 2016 | 18 |
| 2017 | 20 |
| 2018 | 27 |
| 2019 | 19 |
| 2020 | 24 |
| 2021 | 15 |
| 2022 | 25 |
| 2023 | 25 |
| 2024 | 5 |