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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1846 | 1 |
| 1871 | 1 |
| 1899 | 1 |
| 1900 | 1 |
| 1901 | 1 |
| 1908 | 1 |
| 1909 | 3 |
| 1910 | 3 |
| 1911 | 1 |
| 1913 | 1 |
| 1914 | 1 |
| 1915 | 2 |
| 1918 | 2 |
| 1919 | 1 |
| 1920 | 1 |
| 1922 | 2 |
| 1926 | 2 |
| 1927 | 1 |
| 1928 | 2 |
| 1929 | 1 |
| 1930 | 2 |
| 1931 | 3 |
| 1932 | 3 |
| 1933 | 3 |
| 1934 | 2 |
| 1935 | 5 |
| 1936 | 2 |
| 1938 | 3 |
| 1939 | 1 |
| 1940 | 4 |
| 1941 | 1 |
| 1942 | 1 |
| 1943 | 4 |
| 1944 | 1 |
| 1945 | 7 |
| 1946 | 2 |
| 1947 | 12 |
| 1948 | 9 |
| 1949 | 8 |
| 1950 | 23 |
| 1951 | 16 |
| 1952 | 7 |
| 1953 | 14 |
| 1954 | 14 |
| 1955 | 14 |
| 1956 | 14 |
| 1957 | 19 |
| 1958 | 19 |
| 1959 | 17 |
| 1960 | 7 |
| 1961 | 13 |
| 1962 | 13 |
| 1963 | 14 |
| 1964 | 15 |
| 1965 | 22 |
| 1966 | 24 |
| 1967 | 34 |
| 1968 | 18 |
| 1969 | 30 |
| 1970 | 26 |
| 1971 | 38 |
| 1972 | 34 |
| 1973 | 39 |
| 1974 | 44 |
| 1975 | 47 |
| 1976 | 53 |
| 1977 | 47 |
| 1978 | 74 |
| 1979 | 47 |
| 1980 | 47 |
| 1981 | 59 |
| 1982 | 35 |
| 1983 | 53 |
| 1984 | 59 |
| 1985 | 47 |
| 1986 | 70 |
| 1987 | 89 |
| 1988 | 88 |
| 1989 | 111 |
| 1990 | 101 |
| 1991 | 113 |
| 1992 | 113 |
| 1993 | 119 |
| 1994 | 143 |
| 1995 | 149 |
| 1996 | 146 |
| 1997 | 189 |
| 1998 | 186 |
| 1999 | 228 |
| 2000 | 332 |
| 2001 | 427 |
| 2002 | 464 |
| 2003 | 492 |
| 2004 | 573 |
| 2005 | 590 |
| 2006 | 556 |
| 2007 | 579 |
| 2008 | 637 |
| 2009 | 549 |
| 2010 | 615 |
| 2011 | 634 |
| 2012 | 602 |
| 2013 | 691 |
| 2014 | 866 |
| 2015 | 1069 |
| 2016 | 1150 |
| 2017 | 1221 |
| 2018 | 1223 |
| 2019 | 1259 |
| 2020 | 1375 |
| 2021 | 1553 |
| 2022 | 1610 |
| 2023 | 1555 |
| 2024 | 1652 |
| 2025 | 1359 |