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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1842 | 5 |
| 1843 | 1 |
| 1844 | 1 |
| 1892 | 3 |
| 1893 | 2 |
| 1894 | 1 |
| 1920 | 1 |
| 1927 | 1 |
| 1928 | 1 |
| 1931 | 2 |
| 1933 | 1 |
| 1934 | 2 |
| 1935 | 5 |
| 1937 | 2 |
| 1942 | 1 |
| 1943 | 1 |
| 1945 | 4 |
| 1946 | 7 |
| 1947 | 8 |
| 1948 | 12 |
| 1949 | 18 |
| 1950 | 8 |
| 1951 | 7 |
| 1952 | 5 |
| 1953 | 10 |
| 1954 | 16 |
| 1955 | 5 |
| 1956 | 7 |
| 1957 | 6 |
| 1958 | 13 |
| 1959 | 7 |
| 1960 | 15 |
| 1961 | 4 |
| 1962 | 16 |
| 1963 | 11 |
| 1964 | 14 |
| 1965 | 17 |
| 1966 | 14 |
| 1967 | 23 |
| 1968 | 28 |
| 1969 | 23 |
| 1970 | 33 |
| 1971 | 43 |
| 1972 | 37 |
| 1973 | 48 |
| 1974 | 45 |
| 1975 | 51 |
| 1976 | 39 |
| 1977 | 50 |
| 1978 | 50 |
| 1979 | 41 |
| 1980 | 68 |
| 1981 | 64 |
| 1982 | 62 |
| 1983 | 82 |
| 1984 | 62 |
| 1985 | 59 |
| 1986 | 95 |
| 1987 | 84 |
| 1988 | 110 |
| 1989 | 116 |
| 1990 | 120 |
| 1991 | 124 |
| 1992 | 113 |
| 1993 | 145 |
| 1994 | 177 |
| 1995 | 185 |
| 1996 | 182 |
| 1997 | 143 |
| 1998 | 191 |
| 1999 | 149 |
| 2000 | 199 |
| 2001 | 207 |
| 2002 | 223 |
| 2003 | 222 |
| 2004 | 226 |
| 2005 | 269 |
| 2006 | 257 |
| 2007 | 305 |
| 2008 | 315 |
| 2009 | 320 |
| 2010 | 312 |
| 2011 | 372 |
| 2012 | 398 |
| 2013 | 435 |
| 2014 | 417 |
| 2015 | 442 |
| 2016 | 473 |
| 2017 | 446 |
| 2018 | 456 |
| 2019 | 520 |
| 2020 | 570 |
| 2021 | 607 |
| 2022 | 547 |
| 2023 | 525 |
| 2024 | 474 |
| 2025 | 462 |