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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 45 |
| 1972 | 76 |
| 1973 | 77 |
| 1974 | 69 |
| 1975 | 98 |
| 1976 | 147 |
| 1977 | 139 |
| 1978 | 134 |
| 1979 | 168 |
| 1980 | 149 |
| 1981 | 153 |
| 1982 | 150 |
| 1983 | 176 |
| 1984 | 241 |
| 1985 | 237 |
| 1986 | 300 |
| 1987 | 246 |
| 1988 | 312 |
| 1989 | 308 |
| 1990 | 294 |
| 1991 | 260 |
| 1992 | 283 |
| 1993 | 240 |
| 1994 | 292 |
| 1995 | 313 |
| 1996 | 384 |
| 1997 | 330 |
| 1998 | 374 |
| 1999 | 489 |
| 2000 | 418 |
| 2001 | 409 |
| 2002 | 397 |
| 2003 | 496 |
| 2004 | 460 |
| 2005 | 506 |
| 2006 | 542 |
| 2007 | 588 |
| 2008 | 544 |
| 2009 | 516 |
| 2010 | 549 |
| 2011 | 629 |
| 2012 | 663 |
| 2013 | 719 |
| 2014 | 700 |
| 2015 | 723 |
| 2016 | 825 |
| 2017 | 859 |
| 2018 | 852 |
| 2019 | 713 |
| 2020 | 638 |
| 2021 | 667 |
| 2022 | 528 |
| 2023 | 484 |
| 2024 | 485 |
| 2025 | 474 |