Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1799 | 2 |
| 1800 | 2 |
| 1818 | 1 |
| 1881 | 3 |
| 1882 | 3 |
| 1883 | 3 |
| 1884 | 1 |
| 1901 | 1 |
| 1902 | 1 |
| 1904 | 1 |
| 1907 | 1 |
| 1909 | 1 |
| 1910 | 1 |
| 1911 | 1 |
| 1912 | 1 |
| 1925 | 1 |
| 1928 | 1 |
| 1932 | 1 |
| 1934 | 2 |
| 1935 | 1 |
| 1942 | 1 |
| 1947 | 2 |
| 1949 | 3 |
| 1950 | 4 |
| 1951 | 10 |
| 1952 | 5 |
| 1953 | 1 |
| 1954 | 4 |
| 1955 | 7 |
| 1956 | 5 |
| 1957 | 5 |
| 1958 | 8 |
| 1959 | 8 |
| 1960 | 6 |
| 1961 | 16 |
| 1962 | 18 |
| 1963 | 9 |
| 1964 | 16 |
| 1965 | 10 |
| 1966 | 12 |
| 1967 | 19 |
| 1968 | 17 |
| 1969 | 13 |
| 1970 | 16 |
| 1971 | 16 |
| 1972 | 20 |
| 1973 | 16 |
| 1974 | 17 |
| 1975 | 18 |
| 1976 | 16 |
| 1977 | 24 |
| 1978 | 23 |
| 1979 | 33 |
| 1980 | 19 |
| 1981 | 16 |
| 1982 | 31 |
| 1983 | 32 |
| 1984 | 36 |
| 1985 | 33 |
| 1986 | 50 |
| 1987 | 46 |
| 1988 | 29 |
| 1989 | 52 |
| 1990 | 64 |
| 1991 | 44 |
| 1992 | 61 |
| 1993 | 50 |
| 1994 | 47 |
| 1995 | 51 |
| 1996 | 51 |
| 1997 | 42 |
| 1998 | 41 |
| 1999 | 63 |
| 2000 | 56 |
| 2001 | 72 |
| 2002 | 54 |
| 2003 | 67 |
| 2004 | 73 |
| 2005 | 78 |
| 2006 | 103 |
| 2007 | 85 |
| 2008 | 105 |
| 2009 | 89 |
| 2010 | 109 |
| 2011 | 111 |
| 2012 | 167 |
| 2013 | 153 |
| 2014 | 127 |
| 2015 | 168 |
| 2016 | 197 |
| 2017 | 197 |
| 2018 | 173 |
| 2019 | 135 |
| 2020 | 179 |
| 2021 | 186 |
| 2022 | 18 |