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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1838 | 1 |
| 1840 | 1 |
| 1843 | 2 |
| 1844 | 1 |
| 1845 | 2 |
| 1847 | 1 |
| 1851 | 2 |
| 1852 | 1 |
| 1854 | 1 |
| 1860 | 3 |
| 1861 | 1 |
| 1862 | 1 |
| 1866 | 1 |
| 1871 | 1 |
| 1874 | 1 |
| 1875 | 1 |
| 1881 | 1 |
| 1908 | 2 |
| 1909 | 4 |
| 1910 | 1 |
| 1911 | 3 |
| 1912 | 2 |
| 1913 | 3 |
| 1914 | 1 |
| 1915 | 4 |
| 1916 | 1 |
| 1917 | 1 |
| 1918 | 2 |
| 1919 | 2 |
| 1922 | 1 |
| 1923 | 1 |
| 1925 | 2 |
| 1930 | 1 |
| 1931 | 2 |
| 1932 | 1 |
| 1933 | 3 |
| 1934 | 1 |
| 1937 | 1 |
| 1941 | 1 |
| 1944 | 1 |
| 1945 | 1 |
| 1946 | 1 |
| 1948 | 1 |
| 1949 | 8 |
| 1950 | 8 |
| 1951 | 6 |
| 1952 | 6 |
| 1953 | 6 |
| 1954 | 2 |
| 1955 | 9 |
| 1956 | 13 |
| 1957 | 7 |
| 1958 | 7 |
| 1959 | 4 |
| 1960 | 9 |
| 1961 | 4 |
| 1962 | 10 |
| 1963 | 4 |
| 1964 | 11 |
| 1965 | 7 |
| 1966 | 9 |
| 1967 | 10 |
| 1968 | 11 |
| 1969 | 19 |
| 1970 | 21 |
| 1971 | 9 |
| 1972 | 22 |
| 1973 | 23 |
| 1974 | 20 |
| 1975 | 11 |
| 1976 | 29 |
| 1977 | 20 |
| 1978 | 23 |
| 1979 | 29 |
| 1980 | 23 |
| 1981 | 15 |
| 1982 | 33 |
| 1983 | 33 |
| 1984 | 27 |
| 1985 | 28 |
| 1986 | 38 |
| 1987 | 44 |
| 1988 | 37 |
| 1989 | 46 |
| 1990 | 37 |
| 1991 | 27 |
| 1992 | 34 |
| 1993 | 31 |
| 1994 | 31 |
| 1995 | 31 |
| 1996 | 24 |
| 1997 | 32 |
| 1998 | 41 |
| 1999 | 32 |
| 2000 | 37 |
| 2001 | 55 |
| 2002 | 58 |
| 2003 | 39 |
| 2004 | 43 |
| 2005 | 46 |
| 2006 | 57 |
| 2007 | 60 |
| 2008 | 55 |
| 2009 | 84 |
| 2010 | 94 |
| 2011 | 94 |
| 2012 | 132 |
| 2013 | 127 |
| 2014 | 160 |
| 2015 | 137 |
| 2016 | 116 |
| 2017 | 125 |
| 2018 | 147 |
| 2019 | 146 |
| 2020 | 135 |
| 2021 | 175 |
| 2022 | 134 |
| 2023 | 142 |
| 2024 | 111 |
| 2025 | 58 |