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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1976 | 1 |
| 1987 | 20 |
| 1988 | 54 |
| 1989 | 97 |
| 1990 | 142 |
| 1991 | 155 |
| 1992 | 140 |
| 1993 | 154 |
| 1994 | 151 |
| 1995 | 169 |
| 1996 | 152 |
| 1997 | 140 |
| 1998 | 161 |
| 1999 | 175 |
| 2000 | 159 |
| 2001 | 241 |
| 2002 | 248 |
| 2003 | 289 |
| 2004 | 287 |
| 2005 | 308 |
| 2006 | 320 |
| 2007 | 352 |
| 2008 | 455 |
| 2009 | 381 |
| 2010 | 397 |
| 2011 | 423 |
| 2012 | 381 |
| 2013 | 392 |
| 2014 | 367 |
| 2015 | 361 |
| 2016 | 354 |
| 2017 | 299 |
| 2018 | 286 |
| 2019 | 265 |
| 2020 | 229 |
| 2021 | 179 |
| 2022 | 118 |