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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1872 | 2 |
| 1888 | 1 |
| 1890 | 3 |
| 1891 | 3 |
| 1892 | 1 |
| 1893 | 3 |
| 1896 | 1 |
| 1897 | 1 |
| 1898 | 2 |
| 1899 | 7 |
| 1900 | 4 |
| 1901 | 1 |
| 1903 | 1 |
| 1905 | 5 |
| 1906 | 1 |
| 1907 | 1 |
| 1909 | 2 |
| 1911 | 1 |
| 1920 | 1 |
| 1922 | 1 |
| 1933 | 1 |
| 1936 | 1 |
| 1946 | 4 |
| 1947 | 2 |
| 1948 | 3 |
| 1949 | 2 |
| 1950 | 3 |
| 1951 | 5 |
| 1952 | 4 |
| 1953 | 2 |
| 1954 | 7 |
| 1955 | 9 |
| 1956 | 19 |
| 1957 | 7 |
| 1958 | 8 |
| 1959 | 11 |
| 1960 | 10 |
| 1961 | 16 |
| 1962 | 11 |
| 1963 | 15 |
| 1964 | 11 |
| 1965 | 13 |
| 1966 | 13 |
| 1967 | 11 |
| 1968 | 17 |
| 1969 | 22 |
| 1970 | 14 |
| 1971 | 15 |
| 1972 | 28 |
| 1973 | 55 |
| 1974 | 46 |
| 1975 | 42 |
| 1976 | 55 |
| 1977 | 72 |
| 1978 | 56 |
| 1979 | 71 |
| 1980 | 68 |
| 1981 | 63 |
| 1982 | 52 |
| 1983 | 41 |
| 1984 | 44 |
| 1985 | 61 |
| 1986 | 71 |
| 1987 | 77 |
| 1988 | 77 |
| 1989 | 95 |
| 1990 | 91 |
| 1991 | 94 |
| 1992 | 89 |
| 1993 | 85 |
| 1994 | 78 |
| 1995 | 118 |
| 1996 | 106 |
| 1997 | 108 |
| 1998 | 113 |
| 1999 | 109 |
| 2000 | 140 |
| 2001 | 148 |
| 2002 | 143 |
| 2003 | 141 |
| 2004 | 155 |
| 2005 | 179 |
| 2006 | 180 |
| 2007 | 164 |
| 2008 | 207 |
| 2009 | 192 |
| 2010 | 205 |
| 2011 | 239 |
| 2012 | 233 |
| 2013 | 229 |
| 2014 | 251 |
| 2015 | 254 |
| 2016 | 283 |
| 2017 | 293 |
| 2018 | 293 |
| 2019 | 304 |
| 2020 | 323 |
| 2021 | 369 |
| 2022 | 340 |
| 2023 | 162 |