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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1861 | 3 |
| 1863 | 1 |
| 1864 | 5 |
| 1865 | 8 |
| 1868 | 4 |
| 1869 | 1 |
| 1870 | 1 |
| 1873 | 2 |
| 1874 | 1 |
| 1879 | 2 |
| 1884 | 3 |
| 1885 | 1 |
| 1886 | 1 |
| 1923 | 1 |
| 1925 | 3 |
| 1926 | 1 |
| 1927 | 3 |
| 1929 | 6 |
| 1930 | 3 |
| 1931 | 1 |
| 1932 | 4 |
| 1933 | 6 |
| 1934 | 2 |
| 1935 | 1 |
| 1936 | 1 |
| 1937 | 4 |
| 1938 | 1 |
| 1939 | 1 |
| 1940 | 2 |
| 1941 | 3 |
| 1942 | 2 |
| 1943 | 7 |
| 1944 | 2 |
| 1945 | 4 |
| 1946 | 6 |
| 1947 | 9 |
| 1948 | 13 |
| 1949 | 10 |
| 1950 | 17 |
| 1951 | 19 |
| 1952 | 15 |
| 1953 | 24 |
| 1954 | 11 |
| 1955 | 11 |
| 1956 | 10 |
| 1957 | 9 |
| 1958 | 8 |
| 1959 | 4 |
| 1960 | 5 |
| 1961 | 7 |
| 1962 | 7 |
| 1963 | 9 |
| 1964 | 7 |
| 1965 | 22 |
| 1966 | 21 |
| 1967 | 30 |
| 1968 | 17 |
| 1969 | 21 |
| 1970 | 25 |
| 1971 | 27 |
| 1972 | 26 |
| 1973 | 37 |
| 1974 | 31 |
| 1975 | 38 |
| 1976 | 31 |
| 1977 | 38 |
| 1978 | 35 |
| 1979 | 28 |
| 1980 | 38 |
| 1981 | 36 |
| 1982 | 35 |
| 1983 | 44 |
| 1984 | 57 |
| 1985 | 52 |
| 1986 | 44 |
| 1987 | 43 |
| 1988 | 39 |
| 1989 | 50 |
| 1990 | 70 |
| 1991 | 65 |
| 1992 | 80 |
| 1993 | 77 |
| 1994 | 80 |
| 1995 | 92 |
| 1996 | 81 |
| 1997 | 114 |
| 1998 | 112 |
| 1999 | 105 |
| 2000 | 121 |
| 2001 | 127 |
| 2002 | 116 |
| 2003 | 127 |
| 2004 | 132 |
| 2005 | 139 |
| 2006 | 159 |
| 2007 | 162 |
| 2008 | 180 |
| 2009 | 185 |
| 2010 | 161 |
| 2011 | 191 |
| 2012 | 198 |
| 2013 | 213 |
| 2014 | 185 |
| 2015 | 202 |
| 2016 | 191 |
| 2017 | 229 |
| 2018 | 213 |
| 2019 | 219 |
| 2020 | 205 |
| 2021 | 199 |
| 2022 | 197 |
| 2023 | 171 |