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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1842 | 1 |
| 1860 | 1 |
| 1865 | 1 |
| 1867 | 2 |
| 1868 | 1 |
| 1871 | 1 |
| 1872 | 3 |
| 1873 | 2 |
| 1874 | 3 |
| 1876 | 2 |
| 1877 | 1 |
| 1878 | 1 |
| 1879 | 1 |
| 1882 | 1 |
| 1886 | 1 |
| 1892 | 1 |
| 1893 | 4 |
| 1894 | 4 |
| 1895 | 3 |
| 1896 | 1 |
| 1897 | 1 |
| 1898 | 2 |
| 1899 | 1 |
| 1900 | 1 |
| 1901 | 1 |
| 1904 | 2 |
| 1905 | 1 |
| 1906 | 3 |
| 1907 | 1 |
| 1908 | 1 |
| 1910 | 1 |
| 1911 | 2 |
| 1913 | 1 |
| 1914 | 1 |
| 1915 | 2 |
| 1917 | 1 |
| 1918 | 2 |
| 1920 | 1 |
| 1921 | 1 |
| 1923 | 3 |
| 1924 | 1 |
| 1926 | 1 |
| 1927 | 2 |
| 1928 | 5 |
| 1929 | 1 |
| 1932 | 2 |
| 1933 | 1 |
| 1934 | 1 |
| 1936 | 2 |
| 1937 | 1 |
| 1938 | 1 |
| 1940 | 4 |
| 1941 | 3 |
| 1942 | 1 |
| 1944 | 2 |
| 1945 | 3 |
| 1946 | 10 |
| 1947 | 11 |
| 1948 | 16 |
| 1949 | 14 |
| 1950 | 11 |
| 1951 | 16 |
| 1952 | 13 |
| 1953 | 23 |
| 1954 | 19 |
| 1955 | 20 |
| 1956 | 18 |
| 1957 | 21 |
| 1958 | 28 |
| 1959 | 21 |
| 1960 | 37 |
| 1961 | 30 |
| 1962 | 34 |
| 1963 | 32 |
| 1964 | 33 |
| 1965 | 36 |
| 1966 | 55 |
| 1967 | 68 |
| 1968 | 54 |
| 1969 | 101 |
| 1970 | 57 |
| 1971 | 57 |
| 1972 | 54 |
| 1973 | 75 |
| 1974 | 81 |
| 1975 | 66 |
| 1976 | 76 |
| 1977 | 97 |
| 1978 | 89 |
| 1979 | 105 |
| 1980 | 106 |
| 1981 | 111 |
| 1982 | 102 |
| 1983 | 113 |
| 1984 | 136 |
| 1985 | 139 |
| 1986 | 158 |
| 1987 | 198 |
| 1988 | 194 |
| 1989 | 232 |
| 1990 | 223 |
| 1991 | 209 |
| 1992 | 219 |
| 1993 | 231 |
| 1994 | 202 |
| 1995 | 250 |
| 1996 | 241 |
| 1997 | 218 |
| 1998 | 184 |
| 1999 | 213 |
| 2000 | 218 |
| 2001 | 210 |
| 2002 | 198 |
| 2003 | 222 |
| 2004 | 255 |
| 2005 | 266 |
| 2006 | 304 |
| 2007 | 326 |
| 2008 | 357 |
| 2009 | 341 |
| 2010 | 330 |
| 2011 | 379 |
| 2012 | 399 |
| 2013 | 401 |
| 2014 | 439 |
| 2015 | 434 |
| 2016 | 443 |
| 2017 | 457 |
| 2018 | 456 |
| 2019 | 506 |
| 2020 | 523 |
| 2021 | 531 |
| 2022 | 542 |
| 2023 | 228 |