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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1974 | 7 |
| 1975 | 12 |
| 1976 | 19 |
| 1977 | 24 |
| 1978 | 25 |
| 1979 | 32 |
| 1980 | 40 |
| 1981 | 41 |
| 1982 | 56 |
| 1983 | 57 |
| 1984 | 59 |
| 1985 | 39 |
| 1986 | 26 |
| 1987 | 28 |
| 1988 | 22 |
| 1989 | 21 |
| 1990 | 14 |
| 1991 | 14 |
| 1992 | 18 |
| 1993 | 17 |
| 1994 | 14 |
| 1995 | 10 |
| 1996 | 20 |
| 1997 | 13 |
| 1998 | 23 |
| 1999 | 40 |
| 2000 | 30 |
| 2001 | 65 |
| 2002 | 88 |
| 2003 | 99 |
| 2004 | 113 |
| 2005 | 140 |
| 2006 | 200 |
| 2007 | 269 |
| 2008 | 316 |
| 2009 | 332 |
| 2010 | 399 |
| 2011 | 379 |
| 2012 | 414 |
| 2013 | 382 |
| 2014 | 386 |
| 2015 | 147 |
| 2016 | 53 |
| 2017 | 30 |
| 2018 | 33 |
| 2019 | 25 |
| 2020 | 7 |
| 2021 | 6 |
| 2022 | 6 |
| 2024 | 0 |