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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1843 | 2 |
| 1870 | 1 |
| 1887 | 1 |
| 1935 | 1 |
| 1937 | 1 |
| 1938 | 2 |
| 1945 | 2 |
| 1946 | 3 |
| 1947 | 2 |
| 1948 | 1 |
| 1950 | 2 |
| 1951 | 4 |
| 1952 | 1 |
| 1953 | 2 |
| 1954 | 2 |
| 1955 | 2 |
| 1956 | 1 |
| 1957 | 2 |
| 1958 | 2 |
| 1959 | 3 |
| 1960 | 4 |
| 1961 | 4 |
| 1962 | 6 |
| 1963 | 10 |
| 1964 | 3 |
| 1965 | 8 |
| 1966 | 4 |
| 1967 | 11 |
| 1968 | 10 |
| 1969 | 13 |
| 1970 | 11 |
| 1971 | 21 |
| 1972 | 13 |
| 1973 | 22 |
| 1974 | 15 |
| 1975 | 21 |
| 1976 | 21 |
| 1977 | 18 |
| 1978 | 18 |
| 1979 | 26 |
| 1980 | 32 |
| 1981 | 34 |
| 1982 | 26 |
| 1983 | 35 |
| 1984 | 25 |
| 1985 | 38 |
| 1986 | 55 |
| 1987 | 57 |
| 1988 | 50 |
| 1989 | 49 |
| 1990 | 63 |
| 1991 | 56 |
| 1992 | 71 |
| 1993 | 59 |
| 1994 | 60 |
| 1995 | 77 |
| 1996 | 63 |
| 1997 | 69 |
| 1998 | 71 |
| 1999 | 58 |
| 2000 | 64 |
| 2001 | 71 |
| 2002 | 70 |
| 2003 | 67 |
| 2004 | 77 |
| 2005 | 66 |
| 2006 | 77 |
| 2007 | 97 |
| 2008 | 129 |
| 2009 | 108 |
| 2010 | 127 |
| 2011 | 134 |
| 2012 | 130 |
| 2013 | 151 |
| 2014 | 173 |
| 2015 | 145 |
| 2016 | 162 |
| 2017 | 134 |
| 2018 | 143 |
| 2019 | 155 |
| 2020 | 150 |
| 2021 | 183 |
| 2022 | 163 |
| 2023 | 89 |