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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1977 | 1 |
| 1978 | 8 |
| 1979 | 9 |
| 1980 | 8 |
| 1981 | 9 |
| 1982 | 4 |
| 1983 | 2 |
| 1984 | 19 |
| 1985 | 39 |
| 1986 | 34 |
| 1987 | 23 |
| 1988 | 38 |
| 1989 | 56 |
| 1990 | 88 |
| 1991 | 120 |
| 1992 | 119 |
| 1993 | 106 |
| 1994 | 104 |
| 1995 | 136 |
| 1996 | 147 |
| 1997 | 158 |
| 1998 | 219 |
| 1999 | 229 |
| 2000 | 270 |
| 2001 | 304 |
| 2002 | 245 |
| 2003 | 289 |
| 2004 | 315 |
| 2005 | 281 |
| 2006 | 298 |
| 2007 | 310 |
| 2008 | 355 |
| 2009 | 310 |
| 2010 | 324 |
| 2011 | 345 |
| 2012 | 317 |
| 2013 | 307 |
| 2014 | 264 |
| 2015 | 268 |
| 2016 | 201 |
| 2017 | 203 |
| 2018 | 181 |
| 2019 | 161 |
| 2020 | 157 |
| 2021 | 132 |
| 2022 | 108 |
| 2023 | 69 |
| 2024 | 30 |