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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 1 |
| 1972 | 32 |
| 1973 | 115 |
| 1974 | 160 |
| 1975 | 127 |
| 1976 | 157 |
| 1977 | 130 |
| 1978 | 120 |
| 1979 | 118 |
| 1980 | 73 |
| 1981 | 49 |
| 1982 | 67 |
| 1983 | 40 |
| 1984 | 55 |
| 1985 | 58 |
| 1986 | 52 |
| 1987 | 55 |
| 1988 | 74 |
| 1989 | 95 |
| 1990 | 136 |
| 1991 | 192 |
| 1992 | 169 |
| 1993 | 163 |
| 1994 | 181 |
| 1995 | 202 |
| 1996 | 302 |
| 1997 | 374 |
| 1998 | 420 |
| 1999 | 398 |
| 2000 | 475 |
| 2001 | 534 |
| 2002 | 538 |
| 2003 | 599 |
| 2004 | 631 |
| 2005 | 548 |
| 2006 | 552 |
| 2007 | 570 |
| 2008 | 607 |
| 2009 | 567 |
| 2010 | 602 |
| 2011 | 602 |
| 2012 | 571 |
| 2013 | 541 |
| 2014 | 520 |
| 2015 | 466 |
| 2016 | 458 |
| 2017 | 394 |
| 2018 | 353 |
| 2019 | 365 |
| 2020 | 349 |
| 2021 | 308 |
| 2022 | 261 |
| 2023 | 225 |
| 2024 | 321 |
| 2025 | 193 |