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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1818 | 1 |
| 1827 | 1 |
| 1830 | 1 |
| 1840 | 1 |
| 1843 | 1 |
| 1852 | 2 |
| 1857 | 1 |
| 1905 | 2 |
| 1912 | 1 |
| 1916 | 2 |
| 1917 | 1 |
| 1918 | 2 |
| 1920 | 1 |
| 1924 | 1 |
| 1931 | 1 |
| 1932 | 2 |
| 1935 | 1 |
| 1938 | 1 |
| 1940 | 1 |
| 1943 | 1 |
| 1945 | 13 |
| 1946 | 35 |
| 1947 | 29 |
| 1948 | 39 |
| 1949 | 40 |
| 1950 | 47 |
| 1951 | 53 |
| 1952 | 61 |
| 1953 | 67 |
| 1954 | 51 |
| 1955 | 42 |
| 1956 | 41 |
| 1957 | 35 |
| 1958 | 39 |
| 1959 | 32 |
| 1960 | 23 |
| 1961 | 25 |
| 1962 | 41 |
| 1963 | 96 |
| 1964 | 102 |
| 1965 | 88 |
| 1966 | 69 |
| 1967 | 77 |
| 1968 | 113 |
| 1969 | 119 |
| 1970 | 112 |
| 1971 | 156 |
| 1972 | 153 |
| 1973 | 122 |
| 1974 | 109 |
| 1975 | 135 |
| 1976 | 125 |
| 1977 | 111 |
| 1978 | 112 |
| 1979 | 110 |
| 1980 | 85 |
| 1981 | 76 |
| 1982 | 90 |
| 1983 | 86 |
| 1984 | 81 |
| 1985 | 74 |
| 1986 | 67 |
| 1987 | 58 |
| 1988 | 62 |
| 1989 | 78 |
| 1990 | 77 |
| 1991 | 99 |
| 1992 | 78 |
| 1993 | 71 |
| 1994 | 79 |
| 1995 | 70 |
| 1996 | 70 |
| 1997 | 83 |
| 1998 | 85 |
| 1999 | 56 |
| 2000 | 94 |
| 2001 | 107 |
| 2002 | 79 |
| 2003 | 109 |
| 2004 | 111 |
| 2005 | 112 |
| 2006 | 99 |
| 2007 | 131 |
| 2008 | 121 |
| 2009 | 86 |
| 2010 | 102 |
| 2011 | 105 |
| 2012 | 114 |
| 2013 | 89 |
| 2014 | 100 |
| 2015 | 91 |
| 2016 | 88 |
| 2017 | 93 |
| 2018 | 84 |
| 2019 | 87 |
| 2020 | 86 |
| 2021 | 72 |
| 2022 | 67 |
| 2023 | 65 |
| 2024 | 77 |
| 2025 | 77 |
| 2026 | 30 |