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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1845 | 1 |
| 1916 | 1 |
| 1921 | 1 |
| 1925 | 1 |
| 1926 | 1 |
| 1931 | 1 |
| 1933 | 2 |
| 1934 | 1 |
| 1938 | 1 |
| 1939 | 2 |
| 1940 | 1 |
| 1941 | 2 |
| 1942 | 3 |
| 1943 | 1 |
| 1945 | 8 |
| 1946 | 19 |
| 1947 | 8 |
| 1948 | 15 |
| 1949 | 19 |
| 1950 | 11 |
| 1951 | 11 |
| 1952 | 17 |
| 1953 | 16 |
| 1954 | 11 |
| 1955 | 11 |
| 1956 | 20 |
| 1957 | 12 |
| 1958 | 11 |
| 1959 | 9 |
| 1960 | 9 |
| 1961 | 15 |
| 1962 | 13 |
| 1963 | 13 |
| 1964 | 12 |
| 1965 | 12 |
| 1966 | 20 |
| 1967 | 23 |
| 1968 | 28 |
| 1969 | 29 |
| 1970 | 36 |
| 1971 | 47 |
| 1972 | 37 |
| 1973 | 43 |
| 1974 | 47 |
| 1975 | 57 |
| 1976 | 54 |
| 1977 | 62 |
| 1978 | 80 |
| 1979 | 77 |
| 1980 | 105 |
| 1981 | 98 |
| 1982 | 105 |
| 1983 | 102 |
| 1984 | 103 |
| 1985 | 124 |
| 1986 | 132 |
| 1987 | 139 |
| 1988 | 166 |
| 1989 | 205 |
| 1990 | 205 |
| 1991 | 207 |
| 1992 | 242 |
| 1993 | 258 |
| 1994 | 240 |
| 1995 | 271 |
| 1996 | 255 |
| 1997 | 255 |
| 1998 | 260 |
| 1999 | 250 |
| 2000 | 279 |
| 2001 | 299 |
| 2002 | 298 |
| 2003 | 301 |
| 2004 | 339 |
| 2005 | 383 |
| 2006 | 421 |
| 2007 | 432 |
| 2008 | 493 |
| 2009 | 528 |
| 2010 | 548 |
| 2011 | 617 |
| 2012 | 635 |
| 2013 | 620 |
| 2014 | 698 |
| 2015 | 705 |
| 2016 | 719 |
| 2017 | 741 |
| 2018 | 717 |
| 2019 | 777 |
| 2020 | 847 |
| 2021 | 862 |
| 2022 | 849 |
| 2023 | 615 |