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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1970 | 3 |
| 1971 | 2 |
| 1972 | 2 |
| 1973 | 4 |
| 1974 | 6 |
| 1975 | 6 |
| 1976 | 6 |
| 1977 | 13 |
| 1978 | 13 |
| 1979 | 12 |
| 1980 | 23 |
| 1981 | 29 |
| 1982 | 40 |
| 1983 | 75 |
| 1984 | 92 |
| 1985 | 115 |
| 1986 | 135 |
| 1987 | 199 |
| 1988 | 286 |
| 1989 | 374 |
| 1990 | 436 |
| 1991 | 506 |
| 1992 | 503 |
| 1993 | 600 |
| 1994 | 640 |
| 1995 | 680 |
| 1996 | 637 |
| 1997 | 536 |
| 1998 | 521 |
| 1999 | 483 |
| 2000 | 543 |
| 2001 | 531 |
| 2002 | 589 |
| 2003 | 567 |
| 2004 | 610 |
| 2005 | 595 |
| 2006 | 616 |
| 2007 | 707 |
| 2008 | 651 |
| 2009 | 636 |
| 2010 | 694 |
| 2011 | 734 |
| 2012 | 668 |
| 2013 | 615 |
| 2014 | 587 |
| 2015 | 477 |
| 2016 | 380 |
| 2017 | 404 |
| 2018 | 374 |
| 2019 | 319 |
| 2020 | 343 |
| 2021 | 325 |
| 2022 | 282 |
| 2023 | 274 |
| 2024 | 71 |