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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 3 |
| 1973 | 1 |
| 1982 | 2 |
| 1986 | 1 |
| 1987 | 5 |
| 1989 | 21 |
| 1990 | 89 |
| 1991 | 127 |
| 1992 | 218 |
| 1993 | 88 |
| 1994 | 167 |
| 1995 | 191 |
| 1996 | 203 |
| 1997 | 202 |
| 1998 | 248 |
| 1999 | 277 |
| 2000 | 307 |
| 2001 | 391 |
| 2002 | 352 |
| 2003 | 447 |
| 2004 | 585 |
| 2005 | 550 |
| 2006 | 488 |
| 2007 | 563 |
| 2008 | 481 |
| 2009 | 359 |
| 2010 | 347 |
| 2011 | 499 |
| 2012 | 693 |
| 2013 | 758 |
| 2014 | 910 |
| 2015 | 949 |
| 2016 | 910 |
| 2017 | 835 |
| 2018 | 1075 |
| 2019 | 1239 |
| 2020 | 1278 |
| 2021 | 1201 |
| 2022 | 480 |
| 2023 | 386 |
| 2024 | 84 |