Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1807 | 1 |
| 1850 | 1 |
| 1853 | 1 |
| 1876 | 1 |
| 1877 | 2 |
| 1878 | 1 |
| 1882 | 3 |
| 1883 | 1 |
| 1885 | 1 |
| 1887 | 2 |
| 1890 | 3 |
| 1891 | 4 |
| 1894 | 1 |
| 1895 | 2 |
| 1896 | 1 |
| 1898 | 1 |
| 1900 | 2 |
| 1909 | 1 |
| 1912 | 1 |
| 1915 | 2 |
| 1917 | 1 |
| 1919 | 2 |
| 1920 | 1 |
| 1926 | 1 |
| 1927 | 2 |
| 1928 | 3 |
| 1929 | 2 |
| 1930 | 3 |
| 1931 | 2 |
| 1934 | 2 |
| 1935 | 5 |
| 1936 | 2 |
| 1938 | 3 |
| 1939 | 1 |
| 1940 | 1 |
| 1941 | 1 |
| 1942 | 1 |
| 1943 | 1 |
| 1944 | 4 |
| 1945 | 2 |
| 1946 | 9 |
| 1947 | 10 |
| 1948 | 15 |
| 1949 | 15 |
| 1950 | 20 |
| 1951 | 42 |
| 1952 | 47 |
| 1953 | 36 |
| 1954 | 29 |
| 1955 | 27 |
| 1956 | 21 |
| 1957 | 30 |
| 1958 | 25 |
| 1959 | 38 |
| 1960 | 28 |
| 1961 | 41 |
| 1962 | 41 |
| 1963 | 62 |
| 1964 | 47 |
| 1965 | 56 |
| 1966 | 68 |
| 1967 | 60 |
| 1968 | 69 |
| 1969 | 71 |
| 1970 | 77 |
| 1971 | 106 |
| 1972 | 113 |
| 1973 | 93 |
| 1974 | 92 |
| 1975 | 142 |
| 1976 | 119 |
| 1977 | 101 |
| 1978 | 132 |
| 1979 | 133 |
| 1980 | 117 |
| 1981 | 152 |
| 1982 | 164 |
| 1983 | 195 |
| 1984 | 179 |
| 1985 | 218 |
| 1986 | 225 |
| 1987 | 235 |
| 1988 | 228 |
| 1989 | 260 |
| 1990 | 256 |
| 1991 | 278 |
| 1992 | 292 |
| 1993 | 287 |
| 1994 | 302 |
| 1995 | 276 |
| 1996 | 299 |
| 1997 | 300 |
| 1998 | 267 |
| 1999 | 271 |
| 2000 | 253 |
| 2001 | 291 |
| 2002 | 292 |
| 2003 | 333 |
| 2004 | 368 |
| 2005 | 434 |
| 2006 | 433 |
| 2007 | 428 |
| 2008 | 464 |
| 2009 | 442 |
| 2010 | 504 |
| 2011 | 528 |
| 2012 | 579 |
| 2013 | 568 |
| 2014 | 623 |
| 2015 | 617 |
| 2016 | 589 |
| 2017 | 583 |
| 2018 | 589 |
| 2019 | 604 |
| 2020 | 712 |
| 2021 | 762 |
| 2022 | 48 |