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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1977 | 6 |
| 1978 | 17 |
| 1979 | 21 |
| 1980 | 18 |
| 1981 | 10 |
| 1982 | 44 |
| 1983 | 39 |
| 1984 | 36 |
| 1985 | 54 |
| 1986 | 55 |
| 1987 | 53 |
| 1988 | 63 |
| 1989 | 103 |
| 1990 | 88 |
| 1991 | 107 |
| 1992 | 137 |
| 1993 | 111 |
| 1994 | 128 |
| 1995 | 137 |
| 1996 | 159 |
| 1997 | 135 |
| 1998 | 178 |
| 1999 | 189 |
| 2000 | 181 |
| 2001 | 202 |
| 2002 | 180 |
| 2003 | 192 |
| 2004 | 204 |
| 2005 | 202 |
| 2006 | 229 |
| 2007 | 257 |
| 2008 | 275 |
| 2009 | 258 |
| 2010 | 267 |
| 2011 | 252 |
| 2012 | 262 |
| 2013 | 287 |
| 2014 | 299 |
| 2015 | 283 |
| 2016 | 322 |
| 2017 | 266 |
| 2018 | 263 |
| 2019 | 263 |
| 2020 | 197 |
| 2021 | 135 |
| 2022 | 28 |
| 2023 | 4 |
| 2024 | 13 |