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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1860 | 1 |
| 1887 | 1 |
| 1892 | 2 |
| 1894 | 1 |
| 1897 | 1 |
| 1903 | 1 |
| 1921 | 1 |
| 1946 | 1 |
| 1947 | 1 |
| 1948 | 2 |
| 1952 | 2 |
| 1953 | 1 |
| 1956 | 1 |
| 1960 | 1 |
| 1962 | 1 |
| 1963 | 1 |
| 1964 | 1 |
| 1965 | 1 |
| 1984 | 1 |
| 1988 | 1 |
| 1989 | 2 |
| 1991 | 2 |
| 1992 | 2 |
| 1993 | 1 |
| 1995 | 1 |
| 1996 | 1 |
| 1998 | 1 |
| 1999 | 7 |
| 2000 | 10 |
| 2001 | 7 |
| 2002 | 17 |
| 2003 | 14 |
| 2004 | 14 |
| 2005 | 13 |
| 2006 | 17 |
| 2007 | 19 |
| 2008 | 13 |
| 2009 | 15 |
| 2010 | 16 |
| 2011 | 24 |
| 2012 | 18 |
| 2013 | 17 |
| 2014 | 20 |
| 2015 | 22 |
| 2016 | 19 |
| 2017 | 10 |
| 2018 | 34 |
| 2019 | 27 |
| 2020 | 18 |
| 2021 | 39 |
| 2022 | 27 |
| 2023 | 12 |
| 2024 | 1 |