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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1965 | 3 |
| 1966 | 12 |
| 1967 | 16 |
| 1968 | 8 |
| 1969 | 10 |
| 1970 | 15 |
| 1971 | 16 |
| 1972 | 14 |
| 1973 | 20 |
| 1974 | 24 |
| 1975 | 14 |
| 1976 | 15 |
| 1977 | 30 |
| 1978 | 39 |
| 1979 | 47 |
| 1980 | 55 |
| 1981 | 57 |
| 1982 | 62 |
| 1983 | 56 |
| 1984 | 73 |
| 1985 | 82 |
| 1986 | 84 |
| 1987 | 69 |
| 1988 | 106 |
| 1989 | 127 |
| 1990 | 123 |
| 1991 | 112 |
| 1992 | 102 |
| 1993 | 92 |
| 1994 | 85 |
| 1995 | 108 |
| 1996 | 77 |
| 1997 | 74 |
| 1998 | 84 |
| 1999 | 99 |
| 2000 | 117 |
| 2001 | 123 |
| 2002 | 115 |
| 2003 | 151 |
| 2004 | 161 |
| 2005 | 174 |
| 2006 | 200 |
| 2007 | 242 |
| 2008 | 243 |
| 2009 | 286 |
| 2010 | 338 |
| 2011 | 337 |
| 2012 | 388 |
| 2013 | 485 |
| 2014 | 515 |
| 2015 | 539 |
| 2016 | 536 |
| 2017 | 545 |
| 2018 | 636 |
| 2019 | 556 |
| 2020 | 482 |
| 2021 | 397 |
| 2022 | 115 |
| 2023 | 78 |
| 2024 | 21 |