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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1821 | 1 |
| 1830 | 1 |
| 1831 | 1 |
| 1834 | 1 |
| 1835 | 1 |
| 1852 | 1 |
| 1853 | 1 |
| 1858 | 1 |
| 1860 | 3 |
| 1861 | 1 |
| 1864 | 1 |
| 1865 | 1 |
| 1866 | 1 |
| 1867 | 1 |
| 1873 | 1 |
| 1877 | 1 |
| 1912 | 1 |
| 1921 | 1 |
| 1942 | 1 |
| 1974 | 1 |
| 1975 | 1 |
| 1976 | 1 |
| 1977 | 1 |
| 1978 | 1 |
| 1979 | 1 |
| 1980 | 3 |
| 1982 | 3 |
| 1983 | 1 |
| 1985 | 3 |
| 1988 | 3 |
| 1989 | 2 |
| 1990 | 1 |
| 1991 | 2 |
| 1992 | 1 |
| 1993 | 3 |
| 1994 | 1 |
| 1995 | 2 |
| 1996 | 2 |
| 1997 | 1 |
| 1999 | 1 |
| 2000 | 3 |
| 2001 | 1 |
| 2003 | 2 |
| 2004 | 2 |
| 2005 | 1 |
| 2006 | 1 |
| 2007 | 4 |
| 2008 | 1 |
| 2009 | 1 |
| 2010 | 5 |
| 2011 | 1 |
| 2012 | 2 |
| 2013 | 3 |
| 2014 | 6 |
| 2015 | 9 |
| 2016 | 1 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2026 | 0 |