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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 1 |
| 1973 | 1 |
| 1979 | 3 |
| 1980 | 1 |
| 1981 | 7 |
| 1982 | 8 |
| 1983 | 13 |
| 1984 | 11 |
| 1985 | 13 |
| 1986 | 14 |
| 1987 | 6 |
| 1988 | 14 |
| 1989 | 10 |
| 1990 | 14 |
| 1991 | 32 |
| 1992 | 39 |
| 1993 | 33 |
| 1994 | 40 |
| 1995 | 36 |
| 1996 | 52 |
| 1997 | 58 |
| 1998 | 56 |
| 1999 | 54 |
| 2000 | 71 |
| 2001 | 75 |
| 2002 | 93 |
| 2003 | 121 |
| 2004 | 133 |
| 2005 | 164 |
| 2006 | 216 |
| 2007 | 235 |
| 2008 | 228 |
| 2009 | 269 |
| 2010 | 309 |
| 2011 | 360 |
| 2012 | 382 |
| 2013 | 527 |
| 2014 | 606 |
| 2015 | 646 |
| 2016 | 639 |
| 2017 | 675 |
| 2018 | 761 |
| 2019 | 858 |
| 2020 | 1130 |
| 2021 | 1183 |
| 2022 | 1277 |
| 2023 | 127 |