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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1868 | 1 |
| 1871 | 1 |
| 1883 | 1 |
| 1896 | 1 |
| 1897 | 1 |
| 1898 | 1 |
| 1900 | 1 |
| 1974 | 3 |
| 1975 | 4 |
| 1976 | 11 |
| 1977 | 8 |
| 1978 | 5 |
| 1979 | 7 |
| 1980 | 4 |
| 1981 | 3 |
| 1983 | 1 |
| 1987 | 5 |
| 1990 | 3 |
| 1992 | 2 |
| 1993 | 1 |
| 1996 | 2 |
| 1998 | 1 |
| 2002 | 1 |
| 2003 | 2 |
| 2004 | 1 |
| 2006 | 1 |
| 2007 | 2 |
| 2008 | 4 |
| 2009 | 1 |
| 2010 | 3 |
| 2011 | 5 |
| 2012 | 1 |
| 2014 | 2 |
| 2015 | 1 |
| 2017 | 1 |
| 2020 | 3 |
| 2024 | 2 |