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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1876 | 1 |
| 1946 | 1 |
| 1950 | 3 |
| 1952 | 3 |
| 1953 | 2 |
| 1956 | 1 |
| 1957 | 1 |
| 1959 | 1 |
| 1962 | 1 |
| 1966 | 1 |
| 1968 | 2 |
| 1972 | 1 |
| 1973 | 4 |
| 1974 | 1 |
| 1976 | 3 |
| 1980 | 2 |
| 1984 | 2 |
| 1985 | 2 |
| 1987 | 2 |
| 1989 | 1 |
| 1991 | 1 |
| 1992 | 3 |
| 1993 | 1 |
| 2001 | 1 |
| 2002 | 1 |
| 2004 | 1 |
| 2005 | 1 |
| 2006 | 1 |
| 2007 | 3 |
| 2008 | 2 |
| 2009 | 3 |
| 2010 | 1 |
| 2011 | 3 |
| 2012 | 3 |
| 2014 | 2 |
| 2015 | 2 |
| 2016 | 6 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 13 |
| 2021 | 14 |
| 2022 | 11 |
| 2023 | 2 |