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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1841 | 1 |
| 1902 | 1 |
| 1938 | 1 |
| 1939 | 1 |
| 1940 | 2 |
| 1943 | 1 |
| 1945 | 2 |
| 1946 | 2 |
| 1947 | 5 |
| 1948 | 1 |
| 1949 | 7 |
| 1950 | 7 |
| 1951 | 8 |
| 1952 | 5 |
| 1953 | 11 |
| 1954 | 13 |
| 1955 | 9 |
| 1956 | 4 |
| 1957 | 6 |
| 1958 | 7 |
| 1959 | 11 |
| 1960 | 14 |
| 1961 | 20 |
| 1962 | 9 |
| 1963 | 21 |
| 1964 | 19 |
| 1965 | 13 |
| 1966 | 15 |
| 1967 | 14 |
| 1968 | 21 |
| 1969 | 19 |
| 1970 | 26 |
| 1971 | 28 |
| 1972 | 23 |
| 1973 | 25 |
| 1974 | 35 |
| 1975 | 38 |
| 1976 | 44 |
| 1977 | 51 |
| 1978 | 50 |
| 1979 | 56 |
| 1980 | 70 |
| 1981 | 82 |
| 1982 | 77 |
| 1983 | 85 |
| 1984 | 85 |
| 1985 | 85 |
| 1986 | 120 |
| 1987 | 142 |
| 1988 | 161 |
| 1989 | 199 |
| 1990 | 215 |
| 1991 | 202 |
| 1992 | 242 |
| 1993 | 239 |
| 1994 | 236 |
| 1995 | 273 |
| 1996 | 272 |
| 1997 | 291 |
| 1998 | 298 |
| 1999 | 307 |
| 2000 | 346 |
| 2001 | 359 |
| 2002 | 367 |
| 2003 | 395 |
| 2004 | 429 |
| 2005 | 515 |
| 2006 | 550 |
| 2007 | 637 |
| 2008 | 703 |
| 2009 | 735 |
| 2010 | 887 |
| 2011 | 952 |
| 2012 | 983 |
| 2013 | 975 |
| 2014 | 1081 |
| 2015 | 1091 |
| 2016 | 1091 |
| 2017 | 1126 |
| 2018 | 1209 |
| 2019 | 1260 |
| 2020 | 1498 |
| 2021 | 1580 |
| 2022 | 1546 |
| 2023 | 1391 |
| 2024 | 492 |