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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1850 | 2 |
| 1852 | 1 |
| 1853 | 2 |
| 1856 | 1 |
| 1857 | 1 |
| 1860 | 1 |
| 1869 | 7 |
| 1870 | 2 |
| 1875 | 1 |
| 1876 | 1 |
| 1877 | 1 |
| 1878 | 1 |
| 1973 | 1 |
| 1974 | 1 |
| 1980 | 1 |
| 1981 | 1 |
| 1987 | 1 |
| 1990 | 1 |
| 1994 | 3 |
| 1995 | 1 |
| 1996 | 1 |
| 1998 | 2 |
| 1999 | 2 |
| 2003 | 1 |
| 2005 | 1 |
| 2008 | 2 |
| 2009 | 3 |
| 2010 | 2 |
| 2012 | 2 |
| 2014 | 2 |
| 2016 | 1 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 2 |
| 2023 | 1 |
| 2024 | 0 |