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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1823 | 1 |
| 1892 | 1 |
| 1904 | 1 |
| 1913 | 1 |
| 1914 | 1 |
| 1915 | 1 |
| 1916 | 1 |
| 1917 | 2 |
| 1918 | 1 |
| 1930 | 2 |
| 1935 | 1 |
| 1936 | 1 |
| 1940 | 2 |
| 1945 | 2 |
| 1946 | 16 |
| 1947 | 15 |
| 1948 | 18 |
| 1949 | 13 |
| 1950 | 14 |
| 1951 | 13 |
| 1952 | 17 |
| 1953 | 12 |
| 1954 | 13 |
| 1955 | 19 |
| 1956 | 16 |
| 1957 | 19 |
| 1958 | 26 |
| 1959 | 18 |
| 1960 | 13 |
| 1961 | 19 |
| 1962 | 14 |
| 1963 | 14 |
| 1964 | 20 |
| 1965 | 9 |
| 1966 | 12 |
| 1967 | 16 |
| 1968 | 29 |
| 1969 | 44 |
| 1970 | 33 |
| 1971 | 36 |
| 1972 | 31 |
| 1973 | 37 |
| 1974 | 34 |
| 1975 | 39 |
| 1976 | 40 |
| 1977 | 38 |
| 1978 | 37 |
| 1979 | 36 |
| 1980 | 30 |
| 1981 | 36 |
| 1982 | 51 |
| 1983 | 47 |
| 1984 | 40 |
| 1985 | 41 |
| 1986 | 55 |
| 1987 | 58 |
| 1988 | 61 |
| 1989 | 60 |
| 1990 | 64 |
| 1991 | 62 |
| 1992 | 64 |
| 1993 | 73 |
| 1994 | 75 |
| 1995 | 69 |
| 1996 | 78 |
| 1997 | 79 |
| 1998 | 77 |
| 1999 | 75 |
| 2000 | 93 |
| 2001 | 88 |
| 2002 | 79 |
| 2003 | 82 |
| 2004 | 97 |
| 2005 | 100 |
| 2006 | 89 |
| 2007 | 103 |
| 2008 | 100 |
| 2009 | 98 |
| 2010 | 147 |
| 2011 | 120 |
| 2012 | 104 |
| 2013 | 126 |
| 2014 | 118 |
| 2015 | 151 |
| 2016 | 148 |
| 2017 | 141 |
| 2018 | 192 |
| 2019 | 172 |
| 2020 | 218 |
| 2021 | 228 |
| 2022 | 240 |
| 2023 | 162 |