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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 2 |
| 1973 | 2 |
| 1975 | 18 |
| 1976 | 7 |
| 1977 | 2 |
| 1978 | 10 |
| 1979 | 3 |
| 1980 | 13 |
| 1981 | 10 |
| 1982 | 16 |
| 1983 | 8 |
| 1984 | 10 |
| 1985 | 7 |
| 1986 | 14 |
| 1987 | 6 |
| 1988 | 5 |
| 1989 | 31 |
| 1990 | 24 |
| 1991 | 38 |
| 1992 | 66 |
| 1993 | 71 |
| 1994 | 88 |
| 1995 | 68 |
| 1996 | 86 |
| 1997 | 106 |
| 1998 | 124 |
| 1999 | 171 |
| 2000 | 185 |
| 2001 | 239 |
| 2002 | 314 |
| 2003 | 419 |
| 2004 | 779 |
| 2005 | 1546 |
| 2006 | 4543 |
| 2007 | 5613 |
| 2008 | 6428 |
| 2009 | 7287 |
| 2010 | 8182 |
| 2011 | 9082 |
| 2012 | 9872 |
| 2013 | 11213 |
| 2014 | 11641 |
| 2015 | 12052 |
| 2016 | 12019 |
| 2017 | 12253 |
| 2018 | 12672 |
| 2019 | 13409 |
| 2020 | 15045 |
| 2021 | 16394 |
| 2022 | 14591 |
| 2023 | 9960 |
| 2024 | 1815 |