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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1806 | 1 |
| 1813 | 1 |
| 1829 | 4 |
| 1840 | 2 |
| 1845 | 1 |
| 1849 | 1 |
| 1876 | 2 |
| 1883 | 1 |
| 1888 | 4 |
| 1889 | 5 |
| 1890 | 1 |
| 1891 | 2 |
| 1892 | 2 |
| 1893 | 3 |
| 1894 | 3 |
| 1896 | 1 |
| 1897 | 5 |
| 1899 | 2 |
| 1901 | 1 |
| 1902 | 1 |
| 1904 | 1 |
| 1905 | 2 |
| 1906 | 3 |
| 1908 | 3 |
| 1909 | 2 |
| 1911 | 1 |
| 1913 | 3 |
| 1914 | 3 |
| 1915 | 3 |
| 1916 | 1 |
| 1917 | 1 |
| 1918 | 1 |
| 1919 | 1 |
| 1922 | 1 |
| 1925 | 1 |
| 1926 | 1 |
| 1927 | 3 |
| 1929 | 2 |
| 1930 | 1 |
| 1931 | 1 |
| 1932 | 5 |
| 1933 | 7 |
| 1934 | 4 |
| 1935 | 3 |
| 1936 | 1 |
| 1937 | 3 |
| 1938 | 5 |
| 1939 | 1 |
| 1941 | 1 |
| 1942 | 1 |
| 1943 | 2 |
| 1944 | 1 |
| 1945 | 5 |
| 1946 | 24 |
| 1947 | 27 |
| 1948 | 20 |
| 1949 | 31 |
| 1950 | 27 |
| 1951 | 31 |
| 1952 | 31 |
| 1953 | 31 |
| 1954 | 39 |
| 1955 | 35 |
| 1956 | 43 |
| 1957 | 36 |
| 1958 | 42 |
| 1959 | 33 |
| 1960 | 31 |
| 1961 | 44 |
| 1962 | 53 |
| 1963 | 103 |
| 1964 | 91 |
| 1965 | 109 |
| 1966 | 90 |
| 1967 | 83 |
| 1968 | 116 |
| 1969 | 104 |
| 1970 | 131 |
| 1971 | 137 |
| 1972 | 144 |
| 1973 | 130 |
| 1974 | 162 |
| 1975 | 157 |
| 1976 | 189 |
| 1977 | 200 |
| 1978 | 211 |
| 1979 | 223 |
| 1980 | 231 |
| 1981 | 264 |
| 1982 | 281 |
| 1983 | 297 |
| 1984 | 323 |
| 1985 | 262 |
| 1986 | 341 |
| 1987 | 396 |
| 1988 | 370 |
| 1989 | 428 |
| 1990 | 441 |
| 1991 | 427 |
| 1992 | 478 |
| 1993 | 466 |
| 1994 | 502 |
| 1995 | 501 |
| 1996 | 503 |
| 1997 | 536 |
| 1998 | 572 |
| 1999 | 592 |
| 2000 | 732 |
| 2001 | 691 |
| 2002 | 694 |
| 2003 | 758 |
| 2004 | 829 |
| 2005 | 883 |
| 2006 | 895 |
| 2007 | 998 |
| 2008 | 1140 |
| 2009 | 1157 |
| 2010 | 1343 |
| 2011 | 1444 |
| 2012 | 1504 |
| 2013 | 1575 |
| 2014 | 1716 |
| 2015 | 1770 |
| 2016 | 1810 |
| 2017 | 1837 |
| 2018 | 1830 |
| 2019 | 1882 |
| 2020 | 2162 |
| 2021 | 2408 |
| 2022 | 2263 |
| 2023 | 2209 |
| 2024 | 2195 |
| 2025 | 1700 |