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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1973 | 1 |
| 1974 | 2 |
| 1975 | 2 |
| 1976 | 1 |
| 1977 | 4 |
| 1978 | 6 |
| 1979 | 5 |
| 1980 | 8 |
| 1981 | 6 |
| 1982 | 6 |
| 1983 | 18 |
| 1984 | 6 |
| 1985 | 20 |
| 1986 | 11 |
| 1987 | 13 |
| 1988 | 20 |
| 1989 | 16 |
| 1990 | 24 |
| 1991 | 21 |
| 1992 | 28 |
| 1993 | 42 |
| 1994 | 44 |
| 1995 | 75 |
| 1996 | 87 |
| 1997 | 117 |
| 1998 | 145 |
| 1999 | 118 |
| 2000 | 148 |
| 2001 | 169 |
| 2002 | 214 |
| 2003 | 262 |
| 2004 | 273 |
| 2005 | 382 |
| 2006 | 383 |
| 2007 | 354 |
| 2008 | 402 |
| 2009 | 413 |
| 2010 | 380 |
| 2011 | 406 |
| 2012 | 390 |
| 2013 | 381 |
| 2014 | 394 |
| 2015 | 373 |
| 2016 | 299 |
| 2017 | 342 |
| 2018 | 327 |
| 2019 | 303 |
| 2020 | 214 |
| 2021 | 182 |
| 2022 | 142 |
| 2023 | 109 |
| 2024 | 50 |