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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1866 | 1 |
| 1937 | 1 |
| 1938 | 1 |
| 1939 | 1 |
| 1940 | 2 |
| 1942 | 3 |
| 1943 | 1 |
| 1944 | 1 |
| 1945 | 2 |
| 1946 | 1 |
| 1947 | 1 |
| 1948 | 4 |
| 1949 | 1 |
| 1950 | 3 |
| 1951 | 3 |
| 1952 | 2 |
| 1953 | 4 |
| 1954 | 3 |
| 1956 | 1 |
| 1957 | 3 |
| 1958 | 4 |
| 1959 | 8 |
| 1960 | 3 |
| 1961 | 6 |
| 1962 | 7 |
| 1963 | 4 |
| 1964 | 14 |
| 1965 | 9 |
| 1966 | 6 |
| 1967 | 7 |
| 1968 | 6 |
| 1969 | 10 |
| 1970 | 15 |
| 1971 | 15 |
| 1972 | 29 |
| 1973 | 15 |
| 1974 | 19 |
| 1975 | 20 |
| 1976 | 22 |
| 1977 | 23 |
| 1978 | 25 |
| 1979 | 27 |
| 1980 | 29 |
| 1981 | 36 |
| 1982 | 31 |
| 1983 | 44 |
| 1984 | 52 |
| 1985 | 60 |
| 1986 | 74 |
| 1987 | 51 |
| 1988 | 57 |
| 1989 | 59 |
| 1990 | 75 |
| 1991 | 84 |
| 1992 | 92 |
| 1993 | 75 |
| 1994 | 77 |
| 1995 | 105 |
| 1996 | 88 |
| 1997 | 102 |
| 1998 | 114 |
| 1999 | 126 |
| 2000 | 144 |
| 2001 | 150 |
| 2002 | 143 |
| 2003 | 162 |
| 2004 | 190 |
| 2005 | 220 |
| 2006 | 230 |
| 2007 | 238 |
| 2008 | 211 |
| 2009 | 242 |
| 2010 | 268 |
| 2011 | 319 |
| 2012 | 354 |
| 2013 | 338 |
| 2014 | 328 |
| 2015 | 375 |
| 2016 | 362 |
| 2017 | 383 |
| 2018 | 387 |
| 2019 | 335 |
| 2020 | 403 |
| 2021 | 408 |
| 2022 | 414 |
| 2023 | 376 |
| 2024 | 182 |