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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1872 | 1 |
| 1876 | 1 |
| 1885 | 2 |
| 1886 | 1 |
| 1889 | 2 |
| 1896 | 1 |
| 1900 | 1 |
| 1904 | 1 |
| 1913 | 1 |
| 1918 | 1 |
| 1919 | 1 |
| 1920 | 1 |
| 1922 | 1 |
| 1926 | 1 |
| 1928 | 2 |
| 1930 | 1 |
| 1946 | 2 |
| 1947 | 4 |
| 1948 | 7 |
| 1949 | 2 |
| 1950 | 2 |
| 1951 | 4 |
| 1952 | 4 |
| 1953 | 2 |
| 1954 | 5 |
| 1955 | 3 |
| 1957 | 6 |
| 1958 | 8 |
| 1959 | 10 |
| 1960 | 6 |
| 1961 | 6 |
| 1962 | 8 |
| 1963 | 10 |
| 1964 | 13 |
| 1965 | 17 |
| 1966 | 15 |
| 1967 | 13 |
| 1968 | 16 |
| 1969 | 20 |
| 1970 | 18 |
| 1971 | 22 |
| 1972 | 24 |
| 1973 | 26 |
| 1974 | 32 |
| 1975 | 31 |
| 1976 | 31 |
| 1977 | 29 |
| 1978 | 30 |
| 1979 | 28 |
| 1980 | 33 |
| 1981 | 40 |
| 1982 | 37 |
| 1983 | 57 |
| 1984 | 38 |
| 1985 | 36 |
| 1986 | 51 |
| 1987 | 54 |
| 1988 | 62 |
| 1989 | 47 |
| 1990 | 65 |
| 1991 | 48 |
| 1992 | 52 |
| 1993 | 58 |
| 1994 | 74 |
| 1995 | 71 |
| 1996 | 82 |
| 1997 | 77 |
| 1998 | 60 |
| 1999 | 51 |
| 2000 | 62 |
| 2001 | 86 |
| 2002 | 59 |
| 2003 | 83 |
| 2004 | 82 |
| 2005 | 87 |
| 2006 | 88 |
| 2007 | 80 |
| 2008 | 109 |
| 2009 | 104 |
| 2010 | 129 |
| 2011 | 121 |
| 2012 | 112 |
| 2013 | 142 |
| 2014 | 161 |
| 2015 | 139 |
| 2016 | 148 |
| 2017 | 165 |
| 2018 | 177 |
| 2019 | 166 |
| 2020 | 178 |
| 2021 | 209 |
| 2022 | 198 |
| 2023 | 147 |