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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1917 | 2 |
| 1950 | 2 |
| 1951 | 3 |
| 1952 | 3 |
| 1953 | 3 |
| 1954 | 8 |
| 1955 | 9 |
| 1956 | 4 |
| 1957 | 4 |
| 1958 | 3 |
| 1960 | 4 |
| 1961 | 11 |
| 1962 | 13 |
| 1963 | 11 |
| 1964 | 18 |
| 1965 | 16 |
| 1966 | 32 |
| 1967 | 33 |
| 1968 | 28 |
| 1969 | 31 |
| 1970 | 47 |
| 1971 | 41 |
| 1972 | 39 |
| 1973 | 32 |
| 1974 | 33 |
| 1975 | 51 |
| 1976 | 50 |
| 1977 | 71 |
| 1978 | 61 |
| 1979 | 66 |
| 1980 | 65 |
| 1981 | 75 |
| 1982 | 108 |
| 1983 | 102 |
| 1984 | 86 |
| 1985 | 116 |
| 1986 | 145 |
| 1987 | 123 |
| 1988 | 143 |
| 1989 | 167 |
| 1990 | 137 |
| 1991 | 156 |
| 1992 | 148 |
| 1993 | 195 |
| 1994 | 224 |
| 1995 | 213 |
| 1996 | 221 |
| 1997 | 229 |
| 1998 | 259 |
| 1999 | 232 |
| 2000 | 283 |
| 2001 | 270 |
| 2002 | 260 |
| 2003 | 297 |
| 2004 | 305 |
| 2005 | 292 |
| 2006 | 305 |
| 2007 | 279 |
| 2008 | 367 |
| 2009 | 382 |
| 2010 | 338 |
| 2011 | 408 |
| 2012 | 461 |
| 2013 | 448 |
| 2014 | 437 |
| 2015 | 486 |
| 2016 | 517 |
| 2017 | 484 |
| 2018 | 498 |
| 2019 | 549 |
| 2020 | 806 |
| 2021 | 860 |
| 2022 | 786 |
| 2023 | 689 |
| 2024 | 335 |