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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1878 | 1 |
| 1879 | 1 |
| 1881 | 2 |
| 1889 | 1 |
| 1893 | 1 |
| 1897 | 1 |
| 1903 | 1 |
| 1906 | 1 |
| 1907 | 24 |
| 1912 | 1 |
| 1914 | 1 |
| 1915 | 15 |
| 1919 | 1 |
| 1921 | 1 |
| 1923 | 2 |
| 1926 | 1 |
| 1927 | 4 |
| 1929 | 1 |
| 1930 | 2 |
| 1931 | 3 |
| 1932 | 1 |
| 1933 | 1 |
| 1934 | 2 |
| 1935 | 2 |
| 1936 | 1 |
| 1937 | 3 |
| 1938 | 1 |
| 1939 | 1 |
| 1945 | 2 |
| 1946 | 5 |
| 1947 | 7 |
| 1948 | 8 |
| 1949 | 9 |
| 1950 | 25 |
| 1951 | 20 |
| 1952 | 27 |
| 1953 | 22 |
| 1954 | 21 |
| 1955 | 27 |
| 1956 | 24 |
| 1957 | 31 |
| 1958 | 44 |
| 1959 | 23 |
| 1960 | 29 |
| 1961 | 31 |
| 1962 | 32 |
| 1963 | 41 |
| 1964 | 44 |
| 1965 | 38 |
| 1966 | 44 |
| 1967 | 45 |
| 1968 | 56 |
| 1969 | 51 |
| 1970 | 57 |
| 1971 | 48 |
| 1972 | 53 |
| 1973 | 37 |
| 1974 | 52 |
| 1975 | 54 |
| 1976 | 65 |
| 1977 | 49 |
| 1978 | 72 |
| 1979 | 61 |
| 1980 | 66 |
| 1981 | 75 |
| 1982 | 85 |
| 1983 | 95 |
| 1984 | 82 |
| 1985 | 86 |
| 1986 | 95 |
| 1987 | 105 |
| 1988 | 120 |
| 1989 | 108 |
| 1990 | 118 |
| 1991 | 172 |
| 1992 | 140 |
| 1993 | 145 |
| 1994 | 141 |
| 1995 | 164 |
| 1996 | 187 |
| 1997 | 197 |
| 1998 | 217 |
| 1999 | 262 |
| 2000 | 321 |
| 2001 | 406 |
| 2002 | 478 |
| 2003 | 512 |
| 2004 | 574 |
| 2005 | 711 |
| 2006 | 794 |
| 2007 | 683 |
| 2008 | 693 |
| 2009 | 702 |
| 2010 | 673 |
| 2011 | 731 |
| 2012 | 736 |
| 2013 | 820 |
| 2014 | 1181 |
| 2015 | 1344 |
| 2016 | 1460 |
| 2017 | 1468 |
| 2018 | 1654 |
| 2019 | 1621 |
| 2020 | 1815 |
| 2021 | 2014 |
| 2022 | 1996 |
| 2023 | 1985 |
| 2024 | 818 |