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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1872 | 2 |
| 1873 | 1 |
| 1874 | 1 |
| 1880 | 1 |
| 1881 | 4 |
| 1886 | 1 |
| 1887 | 1 |
| 1889 | 1 |
| 1891 | 1 |
| 1892 | 4 |
| 1893 | 6 |
| 1894 | 2 |
| 1895 | 5 |
| 1896 | 1 |
| 1897 | 2 |
| 1900 | 1 |
| 1901 | 3 |
| 1902 | 3 |
| 1903 | 1 |
| 1904 | 1 |
| 1905 | 1 |
| 1907 | 2 |
| 1908 | 2 |
| 1912 | 1 |
| 1913 | 3 |
| 1914 | 1 |
| 1915 | 1 |
| 1916 | 2 |
| 1917 | 4 |
| 1920 | 2 |
| 1921 | 6 |
| 1922 | 2 |
| 1923 | 8 |
| 1924 | 9 |
| 1925 | 4 |
| 1926 | 11 |
| 1927 | 15 |
| 1928 | 14 |
| 1929 | 10 |
| 1930 | 6 |
| 1931 | 15 |
| 1932 | 16 |
| 1933 | 10 |
| 1934 | 9 |
| 1935 | 5 |
| 1936 | 12 |
| 1937 | 13 |
| 1938 | 15 |
| 1939 | 15 |
| 1940 | 14 |
| 1941 | 23 |
| 1942 | 12 |
| 1943 | 18 |
| 1944 | 17 |
| 1945 | 26 |
| 1946 | 33 |
| 1947 | 26 |
| 1948 | 17 |
| 1949 | 13 |
| 1950 | 36 |
| 1951 | 38 |
| 1952 | 29 |
| 1953 | 33 |
| 1954 | 30 |
| 1955 | 28 |
| 1956 | 38 |
| 1957 | 41 |
| 1958 | 47 |
| 1959 | 44 |
| 1960 | 51 |
| 1961 | 44 |
| 1962 | 84 |
| 1963 | 66 |
| 1964 | 89 |
| 1965 | 125 |
| 1966 | 137 |
| 1967 | 181 |
| 1968 | 200 |
| 1969 | 212 |
| 1970 | 226 |
| 1971 | 232 |
| 1972 | 271 |
| 1973 | 329 |
| 1974 | 315 |
| 1975 | 357 |
| 1976 | 360 |
| 1977 | 390 |
| 1978 | 413 |
| 1979 | 450 |
| 1980 | 448 |
| 1981 | 397 |
| 1982 | 461 |
| 1983 | 443 |
| 1984 | 495 |
| 1985 | 480 |
| 1986 | 492 |
| 1987 | 521 |
| 1988 | 580 |
| 1989 | 586 |
| 1990 | 659 |
| 1991 | 637 |
| 1992 | 626 |
| 1993 | 680 |
| 1994 | 663 |
| 1995 | 656 |
| 1996 | 740 |
| 1997 | 753 |
| 1998 | 787 |
| 1999 | 853 |
| 2000 | 951 |
| 2001 | 1108 |
| 2002 | 1200 |
| 2003 | 1323 |
| 2004 | 1450 |
| 2005 | 1744 |
| 2006 | 1823 |
| 2007 | 2153 |
| 2008 | 2343 |
| 2009 | 2566 |
| 2010 | 3070 |
| 2011 | 3684 |
| 2012 | 4078 |
| 2013 | 4449 |
| 2014 | 4892 |
| 2015 | 5170 |
| 2016 | 5437 |
| 2017 | 5403 |
| 2018 | 5777 |
| 2019 | 6139 |
| 2020 | 8140 |
| 2021 | 9226 |
| 2022 | 9339 |
| 2023 | 9140 |
| 2024 | 9488 |
| 2025 | 6542 |