Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1899 | 2 |
| 1904 | 1 |
| 1906 | 1 |
| 1908 | 2 |
| 1910 | 2 |
| 1911 | 1 |
| 1913 | 4 |
| 1914 | 1 |
| 1915 | 1 |
| 1916 | 2 |
| 1918 | 2 |
| 1919 | 1 |
| 1920 | 3 |
| 1923 | 1 |
| 1925 | 2 |
| 1926 | 2 |
| 1927 | 10 |
| 1928 | 5 |
| 1929 | 4 |
| 1930 | 4 |
| 1931 | 4 |
| 1932 | 4 |
| 1933 | 1 |
| 1934 | 2 |
| 1935 | 5 |
| 1937 | 1 |
| 1938 | 2 |
| 1945 | 1 |
| 1946 | 2 |
| 1947 | 2 |
| 1948 | 3 |
| 1949 | 4 |
| 1950 | 2 |
| 1951 | 11 |
| 1952 | 8 |
| 1953 | 15 |
| 1954 | 10 |
| 1955 | 5 |
| 1956 | 7 |
| 1957 | 9 |
| 1958 | 7 |
| 1959 | 9 |
| 1960 | 6 |
| 1961 | 3 |
| 1962 | 12 |
| 1963 | 13 |
| 1964 | 18 |
| 1965 | 17 |
| 1966 | 19 |
| 1967 | 33 |
| 1968 | 18 |
| 1969 | 27 |
| 1970 | 21 |
| 1971 | 17 |
| 1972 | 16 |
| 1973 | 31 |
| 1974 | 22 |
| 1975 | 19 |
| 1976 | 35 |
| 1977 | 29 |
| 1978 | 41 |
| 1979 | 42 |
| 1980 | 46 |
| 1981 | 59 |
| 1982 | 53 |
| 1983 | 60 |
| 1984 | 56 |
| 1985 | 59 |
| 1986 | 72 |
| 1987 | 51 |
| 1988 | 79 |
| 1989 | 96 |
| 1990 | 90 |
| 1991 | 91 |
| 1992 | 85 |
| 1993 | 103 |
| 1994 | 127 |
| 1995 | 115 |
| 1996 | 115 |
| 1997 | 100 |
| 1998 | 107 |
| 1999 | 107 |
| 2000 | 99 |
| 2001 | 97 |
| 2002 | 138 |
| 2003 | 109 |
| 2004 | 101 |
| 2005 | 124 |
| 2006 | 158 |
| 2007 | 155 |
| 2008 | 206 |
| 2009 | 211 |
| 2010 | 236 |
| 2011 | 250 |
| 2012 | 263 |
| 2013 | 256 |
| 2014 | 262 |
| 2015 | 311 |
| 2016 | 297 |
| 2017 | 325 |
| 2018 | 325 |
| 2019 | 370 |
| 2020 | 405 |
| 2021 | 202 |