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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 1 |
| 1973 | 3 |
| 1974 | 2 |
| 1975 | 1 |
| 1976 | 3 |
| 1977 | 15 |
| 1978 | 15 |
| 1979 | 31 |
| 1980 | 36 |
| 1981 | 36 |
| 1982 | 62 |
| 1983 | 39 |
| 1984 | 70 |
| 1985 | 96 |
| 1986 | 103 |
| 1987 | 152 |
| 1988 | 187 |
| 1989 | 256 |
| 1990 | 308 |
| 1991 | 344 |
| 1992 | 411 |
| 1993 | 505 |
| 1994 | 495 |
| 1995 | 513 |
| 1996 | 488 |
| 1997 | 594 |
| 1998 | 586 |
| 1999 | 542 |
| 2000 | 639 |
| 2001 | 530 |
| 2002 | 389 |
| 2003 | 405 |
| 2004 | 379 |
| 2005 | 357 |
| 2006 | 325 |
| 2007 | 295 |
| 2008 | 246 |
| 2009 | 201 |
| 2010 | 180 |
| 2011 | 182 |
| 2012 | 141 |
| 2013 | 156 |
| 2014 | 109 |
| 2015 | 109 |
| 2016 | 73 |
| 2017 | 87 |
| 2018 | 66 |
| 2019 | 41 |
| 2020 | 33 |
| 2021 | 32 |
| 2022 | 19 |
| 2023 | 12 |
| 2024 | 14 |
| 2025 | 0 |