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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1881 | 6 |
| 1883 | 6 |
| 1884 | 16 |
| 1885 | 16 |
| 1886 | 19 |
| 1887 | 15 |
| 1889 | 2 |
| 1892 | 1 |
| 1922 | 2 |
| 1945 | 1 |
| 1946 | 11 |
| 1947 | 8 |
| 1948 | 5 |
| 1949 | 2 |
| 1950 | 1 |
| 1951 | 3 |
| 1953 | 1 |
| 1954 | 6 |
| 1955 | 5 |
| 1956 | 2 |
| 1957 | 3 |
| 1958 | 4 |
| 1959 | 2 |
| 1960 | 127 |
| 1961 | 44 |
| 1962 | 67 |
| 1963 | 118 |
| 1964 | 80 |
| 1965 | 113 |
| 1966 | 103 |
| 1967 | 107 |
| 1968 | 25 |
| 1969 | 81 |
| 1970 | 88 |
| 1971 | 67 |
| 1972 | 167 |
| 1973 | 123 |
| 1974 | 211 |
| 1975 | 295 |
| 1976 | 100 |
| 1977 | 222 |
| 1978 | 98 |
| 1979 | 94 |
| 1980 | 134 |
| 1981 | 116 |
| 1982 | 104 |
| 1983 | 139 |
| 1984 | 155 |
| 1985 | 214 |
| 1986 | 188 |
| 1987 | 234 |
| 1988 | 246 |
| 1989 | 321 |
| 1990 | 393 |
| 1991 | 404 |
| 1992 | 527 |
| 1993 | 434 |
| 1994 | 572 |
| 1995 | 790 |
| 1996 | 800 |
| 1997 | 955 |
| 1998 | 667 |
| 1999 | 905 |
| 2000 | 1042 |
| 2001 | 1700 |
| 2002 | 2406 |
| 2003 | 2575 |
| 2004 | 3398 |
| 2005 | 4214 |
| 2006 | 5324 |
| 2007 | 6719 |
| 2008 | 8150 |
| 2009 | 8581 |
| 2010 | 7493 |
| 2011 | 6631 |
| 2012 | 8762 |
| 2013 | 7008 |
| 2014 | 6569 |
| 2015 | 7895 |
| 2016 | 5854 |
| 2017 | 6037 |
| 2018 | 5126 |
| 2019 | 382 |
| 2024 | 0 |