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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1826 | 1 |
| 1871 | 1 |
| 1881 | 1 |
| 1882 | 1 |
| 1883 | 1 |
| 1899 | 1 |
| 1901 | 1 |
| 1909 | 5 |
| 1916 | 2 |
| 1919 | 1 |
| 1922 | 1 |
| 1923 | 1 |
| 1924 | 6 |
| 1925 | 5 |
| 1926 | 2 |
| 1927 | 1 |
| 1929 | 1 |
| 1930 | 1 |
| 1931 | 1 |
| 1932 | 1 |
| 1933 | 2 |
| 1934 | 2 |
| 1936 | 1 |
| 1937 | 1 |
| 1938 | 1 |
| 1939 | 1 |
| 1941 | 1 |
| 1944 | 4 |
| 1945 | 9 |
| 1946 | 14 |
| 1947 | 19 |
| 1948 | 21 |
| 1949 | 16 |
| 1950 | 19 |
| 1951 | 14 |
| 1952 | 13 |
| 1953 | 16 |
| 1954 | 21 |
| 1955 | 14 |
| 1956 | 13 |
| 1957 | 9 |
| 1958 | 17 |
| 1959 | 10 |
| 1960 | 18 |
| 1961 | 18 |
| 1962 | 18 |
| 1963 | 9 |
| 1964 | 24 |
| 1965 | 24 |
| 1966 | 14 |
| 1967 | 21 |
| 1968 | 29 |
| 1969 | 27 |
| 1970 | 32 |
| 1971 | 29 |
| 1972 | 34 |
| 1973 | 29 |
| 1974 | 37 |
| 1975 | 43 |
| 1976 | 55 |
| 1977 | 41 |
| 1978 | 53 |
| 1979 | 50 |
| 1980 | 62 |
| 1981 | 52 |
| 1982 | 70 |
| 1983 | 67 |
| 1984 | 67 |
| 1985 | 67 |
| 1986 | 75 |
| 1987 | 92 |
| 1988 | 88 |
| 1989 | 98 |
| 1990 | 123 |
| 1991 | 126 |
| 1992 | 125 |
| 1993 | 144 |
| 1994 | 150 |
| 1995 | 168 |
| 1996 | 167 |
| 1997 | 152 |
| 1998 | 141 |
| 1999 | 152 |
| 2000 | 173 |
| 2001 | 176 |
| 2002 | 184 |
| 2003 | 168 |
| 2004 | 180 |
| 2005 | 138 |
| 2006 | 172 |
| 2007 | 199 |
| 2008 | 225 |
| 2009 | 221 |
| 2010 | 223 |
| 2011 | 288 |
| 2012 | 322 |
| 2013 | 347 |
| 2014 | 330 |
| 2015 | 366 |
| 2016 | 381 |
| 2017 | 410 |
| 2018 | 440 |
| 2019 | 445 |
| 2020 | 513 |
| 2021 | 587 |
| 2022 | 570 |
| 2023 | 398 |