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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1840 | 1 |
| 1841 | 2 |
| 1842 | 1 |
| 1843 | 2 |
| 1912 | 1 |
| 1939 | 1 |
| 1946 | 1 |
| 1948 | 2 |
| 1949 | 3 |
| 1950 | 3 |
| 1951 | 3 |
| 1952 | 3 |
| 1953 | 2 |
| 1959 | 2 |
| 1960 | 1 |
| 1962 | 2 |
| 1965 | 1 |
| 1972 | 1 |
| 1978 | 1 |
| 1979 | 2 |
| 1980 | 1 |
| 1989 | 1 |
| 1990 | 1 |
| 1996 | 1 |
| 2000 | 1 |
| 2002 | 1 |
| 2005 | 4 |
| 2006 | 3 |
| 2007 | 5 |
| 2008 | 4 |
| 2009 | 4 |
| 2010 | 4 |
| 2011 | 1 |
| 2012 | 8 |
| 2013 | 4 |
| 2014 | 5 |
| 2015 | 5 |
| 2016 | 7 |
| 2017 | 6 |
| 2018 | 8 |
| 2019 | 6 |
| 2020 | 11 |
| 2021 | 11 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 5 |