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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1855 | 1 |
| 1909 | 1 |
| 1915 | 1 |
| 1917 | 4 |
| 1918 | 1 |
| 1919 | 1 |
| 1920 | 3 |
| 1922 | 2 |
| 1934 | 1 |
| 1935 | 3 |
| 1936 | 1 |
| 1945 | 3 |
| 1946 | 5 |
| 1947 | 1 |
| 1950 | 1 |
| 1951 | 2 |
| 1952 | 2 |
| 1953 | 3 |
| 1955 | 1 |
| 1956 | 2 |
| 1962 | 1 |
| 1963 | 1 |
| 1968 | 1 |
| 1969 | 1 |
| 1980 | 1 |
| 1987 | 1 |
| 1989 | 2 |
| 1991 | 3 |
| 1992 | 1 |
| 1994 | 1 |
| 1995 | 2 |
| 1996 | 1 |
| 1997 | 3 |
| 1998 | 1 |
| 1999 | 1 |
| 2001 | 4 |
| 2002 | 2 |
| 2003 | 1 |
| 2006 | 2 |
| 2008 | 1 |
| 2009 | 2 |
| 2010 | 2 |
| 2011 | 2 |
| 2012 | 2 |
| 2013 | 4 |
| 2014 | 2 |
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 5 |
| 2024 | 2 |