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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1803 | 1 |
| 1844 | 1 |
| 1845 | 3 |
| 1846 | 1 |
| 1850 | 1 |
| 1852 | 1 |
| 1853 | 2 |
| 1854 | 2 |
| 1855 | 1 |
| 1856 | 2 |
| 1861 | 1 |
| 1862 | 1 |
| 1867 | 1 |
| 1878 | 1 |
| 1888 | 1 |
| 1889 | 1 |
| 1901 | 1 |
| 1905 | 1 |
| 1910 | 1 |
| 1911 | 1 |
| 1912 | 4 |
| 1913 | 3 |
| 1914 | 1 |
| 1915 | 3 |
| 1916 | 3 |
| 1917 | 8 |
| 1918 | 3 |
| 1919 | 1 |
| 1920 | 2 |
| 1921 | 6 |
| 1922 | 3 |
| 1923 | 3 |
| 1925 | 1 |
| 1926 | 4 |
| 1927 | 1 |
| 1930 | 1 |
| 1932 | 1 |
| 1936 | 1 |
| 1938 | 2 |
| 1939 | 2 |
| 1940 | 1 |
| 1942 | 1 |
| 1944 | 2 |
| 1945 | 1 |
| 1946 | 6 |
| 1947 | 6 |
| 1948 | 13 |
| 1949 | 19 |
| 1950 | 20 |
| 1951 | 20 |
| 1952 | 15 |
| 1953 | 31 |
| 1954 | 27 |
| 1955 | 22 |
| 1956 | 34 |
| 1957 | 17 |
| 1958 | 21 |
| 1959 | 19 |
| 1960 | 18 |
| 1961 | 14 |
| 1962 | 18 |
| 1963 | 19 |
| 1964 | 25 |
| 1965 | 35 |
| 1966 | 29 |
| 1967 | 43 |
| 1968 | 40 |
| 1969 | 44 |
| 1970 | 50 |
| 1971 | 50 |
| 1972 | 65 |
| 1973 | 60 |
| 1974 | 54 |
| 1975 | 79 |
| 1976 | 68 |
| 1977 | 65 |
| 1978 | 82 |
| 1979 | 60 |
| 1980 | 57 |
| 1981 | 64 |
| 1982 | 55 |
| 1983 | 75 |
| 1984 | 89 |
| 1985 | 91 |
| 1986 | 90 |
| 1987 | 79 |
| 1988 | 107 |
| 1989 | 105 |
| 1990 | 135 |
| 1991 | 121 |
| 1992 | 128 |
| 1993 | 97 |
| 1994 | 109 |
| 1995 | 118 |
| 1996 | 135 |
| 1997 | 119 |
| 1998 | 126 |
| 1999 | 135 |
| 2000 | 153 |
| 2001 | 153 |
| 2002 | 151 |
| 2003 | 179 |
| 2004 | 186 |
| 2005 | 191 |
| 2006 | 198 |
| 2007 | 212 |
| 2008 | 195 |
| 2009 | 203 |
| 2010 | 232 |
| 2011 | 287 |
| 2012 | 284 |
| 2013 | 340 |
| 2014 | 315 |
| 2015 | 321 |
| 2016 | 380 |
| 2017 | 388 |
| 2018 | 359 |
| 2019 | 332 |
| 2020 | 350 |
| 2021 | 398 |
| 2022 | 405 |
| 2023 | 262 |