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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1875 | 2 |
| 1876 | 1 |
| 1878 | 3 |
| 1879 | 2 |
| 1880 | 1 |
| 1882 | 2 |
| 1883 | 3 |
| 1884 | 1 |
| 1885 | 1 |
| 1886 | 1 |
| 1888 | 1 |
| 1889 | 2 |
| 1890 | 2 |
| 1891 | 3 |
| 1892 | 2 |
| 1893 | 1 |
| 1894 | 3 |
| 1895 | 3 |
| 1896 | 4 |
| 1897 | 1 |
| 1898 | 2 |
| 1900 | 3 |
| 1901 | 2 |
| 1903 | 1 |
| 1904 | 4 |
| 1905 | 2 |
| 1907 | 1 |
| 1908 | 2 |
| 1909 | 2 |
| 1910 | 2 |
| 1911 | 3 |
| 1912 | 1 |
| 1913 | 1 |
| 1914 | 1 |
| 1915 | 2 |
| 1916 | 4 |
| 1917 | 3 |
| 1918 | 4 |
| 1919 | 2 |
| 1922 | 3 |
| 1923 | 3 |
| 1924 | 1 |
| 1925 | 1 |
| 1952 | 2 |
| 1962 | 2 |
| 1964 | 2 |
| 1967 | 1 |
| 1970 | 1 |
| 1972 | 1 |
| 1974 | 3 |
| 1975 | 4 |
| 1976 | 3 |
| 1977 | 2 |
| 1978 | 2 |
| 1979 | 3 |
| 1980 | 2 |
| 1981 | 9 |
| 1982 | 4 |
| 1983 | 5 |
| 1984 | 5 |
| 1985 | 5 |
| 1986 | 5 |
| 1987 | 5 |
| 1988 | 6 |
| 1989 | 9 |
| 1990 | 7 |
| 1991 | 5 |
| 1992 | 11 |
| 1993 | 13 |
| 1994 | 11 |
| 1995 | 18 |
| 1996 | 19 |
| 1997 | 14 |
| 1998 | 12 |
| 1999 | 15 |
| 2000 | 16 |
| 2001 | 16 |
| 2002 | 19 |
| 2003 | 14 |
| 2004 | 17 |
| 2005 | 26 |
| 2006 | 25 |
| 2007 | 18 |
| 2008 | 23 |
| 2009 | 31 |
| 2010 | 25 |
| 2011 | 30 |
| 2012 | 26 |
| 2013 | 33 |
| 2014 | 29 |
| 2015 | 24 |
| 2016 | 30 |
| 2017 | 29 |
| 2018 | 18 |
| 2019 | 24 |
| 2020 | 44 |
| 2021 | 35 |
| 2022 | 26 |
| 2023 | 29 |