Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1821 | 1 |
| 1830 | 1 |
| 1853 | 1 |
| 1854 | 1 |
| 1855 | 2 |
| 1856 | 2 |
| 1857 | 4 |
| 1858 | 3 |
| 1859 | 2 |
| 1861 | 3 |
| 1862 | 2 |
| 1864 | 2 |
| 1867 | 1 |
| 1870 | 1 |
| 1875 | 4 |
| 1876 | 1 |
| 1879 | 1 |
| 1882 | 3 |
| 1883 | 2 |
| 1913 | 1 |
| 1920 | 1 |
| 1928 | 1 |
| 1930 | 1 |
| 1932 | 1 |
| 1935 | 1 |
| 1937 | 2 |
| 1939 | 1 |
| 1940 | 2 |
| 1942 | 2 |
| 1944 | 1 |
| 1945 | 2 |
| 1946 | 14 |
| 1947 | 9 |
| 1948 | 5 |
| 1949 | 4 |
| 1950 | 10 |
| 1951 | 9 |
| 1952 | 7 |
| 1953 | 15 |
| 1954 | 8 |
| 1955 | 9 |
| 1956 | 15 |
| 1957 | 8 |
| 1958 | 13 |
| 1959 | 13 |
| 1960 | 9 |
| 1961 | 6 |
| 1962 | 9 |
| 1963 | 12 |
| 1964 | 8 |
| 1965 | 11 |
| 1966 | 17 |
| 1967 | 6 |
| 1968 | 21 |
| 1969 | 21 |
| 1970 | 22 |
| 1971 | 23 |
| 1972 | 31 |
| 1973 | 34 |
| 1974 | 44 |
| 1975 | 43 |
| 1976 | 39 |
| 1977 | 43 |
| 1978 | 35 |
| 1979 | 38 |
| 1980 | 40 |
| 1981 | 47 |
| 1982 | 43 |
| 1983 | 42 |
| 1984 | 41 |
| 1985 | 49 |
| 1986 | 40 |
| 1987 | 36 |
| 1988 | 38 |
| 1989 | 55 |
| 1990 | 65 |
| 1991 | 54 |
| 1992 | 47 |
| 1993 | 74 |
| 1994 | 87 |
| 1995 | 92 |
| 1996 | 88 |
| 1997 | 66 |
| 1998 | 86 |
| 1999 | 70 |
| 2000 | 80 |
| 2001 | 93 |
| 2002 | 88 |
| 2003 | 96 |
| 2004 | 107 |
| 2005 | 126 |
| 2006 | 127 |
| 2007 | 124 |
| 2008 | 126 |
| 2009 | 128 |
| 2010 | 131 |
| 2011 | 141 |
| 2012 | 153 |
| 2013 | 188 |
| 2014 | 175 |
| 2015 | 196 |
| 2016 | 154 |
| 2017 | 150 |
| 2018 | 168 |
| 2019 | 186 |
| 2020 | 190 |
| 2021 | 205 |
| 2022 | 161 |
