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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1866 | 1 |
| 1867 | 2 |
| 1868 | 1 |
| 1869 | 3 |
| 1870 | 5 |
| 1871 | 1 |
| 1872 | 2 |
| 1873 | 2 |
| 1874 | 8 |
| 1875 | 3 |
| 1878 | 4 |
| 1879 | 1 |
| 1880 | 4 |
| 1881 | 1 |
| 1882 | 2 |
| 1883 | 2 |
| 1884 | 4 |
| 1885 | 5 |
| 1886 | 4 |
| 1887 | 5 |
| 1888 | 2 |
| 1889 | 3 |
| 1890 | 5 |
| 1892 | 6 |
| 1893 | 1 |
| 1894 | 2 |
| 1895 | 1 |
| 1896 | 1 |
| 1897 | 3 |
| 1898 | 1 |
| 1899 | 1 |
| 1947 | 2 |
| 1948 | 1 |
| 1968 | 1 |
| 1981 | 1 |
| 1982 | 1 |
| 1983 | 1 |
| 1990 | 2 |
| 1991 | 2 |
| 1993 | 4 |
| 1994 | 1 |
| 1995 | 2 |
| 1996 | 4 |
| 1997 | 2 |
| 1998 | 1 |
| 1999 | 2 |
| 2000 | 4 |
| 2001 | 2 |
| 2002 | 2 |
| 2003 | 2 |
| 2004 | 3 |
| 2005 | 4 |
| 2006 | 3 |
| 2007 | 6 |
| 2008 | 5 |
| 2009 | 8 |
| 2010 | 5 |
| 2011 | 3 |
| 2012 | 5 |
| 2013 | 9 |
| 2014 | 6 |
| 2015 | 2 |
| 2016 | 6 |
| 2017 | 8 |
| 2018 | 7 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 6 |
| 2023 | 0 |