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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 1 |
| 1966 | 3 |
| 1967 | 6 |
| 1968 | 18 |
| 1969 | 18 |
| 1970 | 23 |
| 1971 | 28 |
| 1972 | 25 |
| 1973 | 22 |
| 1974 | 21 |
| 1975 | 20 |
| 1976 | 44 |
| 1977 | 39 |
| 1978 | 48 |
| 1979 | 50 |
| 1980 | 109 |
| 1981 | 134 |
| 1982 | 144 |
| 1983 | 188 |
| 1984 | 211 |
| 1985 | 279 |
| 1986 | 361 |
| 1987 | 462 |
| 1988 | 469 |
| 1989 | 476 |
| 1990 | 559 |
| 1991 | 571 |
| 1992 | 573 |
| 1993 | 703 |
| 1994 | 772 |
| 1995 | 901 |
| 1996 | 855 |
| 1997 | 752 |
| 1998 | 768 |
| 1999 | 790 |
| 2000 | 801 |
| 2001 | 792 |
| 2002 | 792 |
| 2003 | 829 |
| 2004 | 896 |
| 2005 | 914 |
| 2006 | 830 |
| 2007 | 892 |
| 2008 | 787 |
| 2009 | 814 |
| 2010 | 832 |
| 2011 | 933 |
| 2012 | 857 |
| 2013 | 854 |
| 2014 | 833 |
| 2015 | 710 |
| 2016 | 518 |
| 2017 | 443 |
| 2018 | 305 |
| 2019 | 282 |
| 2020 | 267 |
| 2021 | 182 |
| 2022 | 58 |
| 2023 | 38 |
| 2024 | 11 |