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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1839 | 1 |
| 1852 | 2 |
| 1860 | 1 |
| 1865 | 1 |
| 1867 | 1 |
| 1872 | 1 |
| 1874 | 1 |
| 1875 | 1 |
| 1878 | 1 |
| 1885 | 1 |
| 1892 | 1 |
| 1895 | 1 |
| 1896 | 1 |
| 1897 | 1 |
| 1898 | 1 |
| 1901 | 1 |
| 1911 | 1 |
| 1913 | 1 |
| 1922 | 1 |
| 1925 | 1 |
| 1942 | 1 |
| 1947 | 3 |
| 1948 | 2 |
| 1949 | 3 |
| 1950 | 2 |
| 1953 | 4 |
| 1954 | 3 |
| 1955 | 2 |
| 1956 | 2 |
| 1957 | 1 |
| 1958 | 2 |
| 1959 | 1 |
| 1961 | 1 |
| 1962 | 2 |
| 1963 | 2 |
| 1964 | 4 |
| 1965 | 4 |
| 1966 | 3 |
| 1967 | 3 |
| 1969 | 3 |
| 1970 | 2 |
| 1971 | 6 |
| 1972 | 8 |
| 1973 | 6 |
| 1974 | 2 |
| 1975 | 9 |
| 1976 | 8 |
| 1977 | 6 |
| 1978 | 15 |
| 1979 | 10 |
| 1980 | 4 |
| 1981 | 17 |
| 1982 | 21 |
| 1983 | 13 |
| 1984 | 26 |
| 1985 | 19 |
| 1986 | 30 |
| 1987 | 33 |
| 1988 | 27 |
| 1989 | 28 |
| 1990 | 33 |
| 1991 | 34 |
| 1992 | 25 |
| 1993 | 37 |
| 1994 | 46 |
| 1995 | 46 |
| 1996 | 46 |
| 1997 | 45 |
| 1998 | 35 |
| 1999 | 48 |
| 2000 | 59 |
| 2001 | 57 |
| 2002 | 58 |
| 2003 | 67 |
| 2004 | 68 |
| 2005 | 68 |
| 2006 | 97 |
| 2007 | 59 |
| 2008 | 88 |
| 2009 | 104 |
| 2010 | 106 |
| 2011 | 132 |
| 2012 | 128 |
| 2013 | 141 |
| 2014 | 164 |
| 2015 | 200 |
| 2016 | 195 |
| 2017 | 180 |
| 2018 | 201 |
| 2019 | 190 |
| 2020 | 214 |
| 2021 | 229 |
| 2022 | 242 |
| 2023 | 181 |