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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1846 | 1 |
| 1931 | 1 |
| 1933 | 1 |
| 1941 | 1 |
| 1943 | 1 |
| 1946 | 6 |
| 1947 | 6 |
| 1948 | 6 |
| 1949 | 12 |
| 1950 | 9 |
| 1951 | 20 |
| 1952 | 15 |
| 1953 | 11 |
| 1954 | 7 |
| 1955 | 8 |
| 1956 | 14 |
| 1957 | 25 |
| 1958 | 15 |
| 1959 | 21 |
| 1960 | 19 |
| 1961 | 27 |
| 1962 | 32 |
| 1963 | 32 |
| 1964 | 27 |
| 1965 | 44 |
| 1966 | 35 |
| 1967 | 34 |
| 1968 | 52 |
| 1969 | 45 |
| 1970 | 63 |
| 1971 | 57 |
| 1972 | 57 |
| 1973 | 79 |
| 1974 | 65 |
| 1975 | 93 |
| 1976 | 63 |
| 1977 | 75 |
| 1978 | 59 |
| 1979 | 81 |
| 1980 | 58 |
| 1981 | 80 |
| 1982 | 77 |
| 1983 | 91 |
| 1984 | 76 |
| 1985 | 103 |
| 1986 | 107 |
| 1987 | 119 |
| 1988 | 103 |
| 1989 | 105 |
| 1990 | 124 |
| 1991 | 131 |
| 1992 | 132 |
| 1993 | 119 |
| 1994 | 126 |
| 1995 | 151 |
| 1996 | 146 |
| 1997 | 164 |
| 1998 | 156 |
| 1999 | 154 |
| 2000 | 215 |
| 2001 | 177 |
| 2002 | 153 |
| 2003 | 164 |
| 2004 | 206 |
| 2005 | 212 |
| 2006 | 223 |
| 2007 | 231 |
| 2008 | 235 |
| 2009 | 210 |
| 2010 | 237 |
| 2011 | 225 |
| 2012 | 276 |
| 2013 | 266 |
| 2014 | 257 |
| 2015 | 280 |
| 2016 | 258 |
| 2017 | 236 |
| 2018 | 253 |
| 2019 | 267 |
| 2020 | 277 |
| 2021 | 314 |
| 2022 | 267 |
| 2023 | 222 |
| 2024 | 217 |
| 2025 | 237 |