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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 1 |
| 1973 | 1 |
| 1977 | 1 |
| 1978 | 11 |
| 1979 | 17 |
| 1980 | 16 |
| 1981 | 6 |
| 1982 | 11 |
| 1983 | 16 |
| 1984 | 7 |
| 1985 | 6 |
| 1986 | 5 |
| 1987 | 11 |
| 1988 | 12 |
| 1989 | 12 |
| 1990 | 16 |
| 1991 | 20 |
| 1992 | 26 |
| 1993 | 21 |
| 1994 | 20 |
| 1995 | 22 |
| 1996 | 33 |
| 1997 | 28 |
| 1998 | 41 |
| 1999 | 71 |
| 2000 | 58 |
| 2001 | 88 |
| 2002 | 70 |
| 2003 | 83 |
| 2004 | 91 |
| 2005 | 95 |
| 2006 | 131 |
| 2007 | 179 |
| 2008 | 201 |
| 2009 | 267 |
| 2010 | 314 |
| 2011 | 402 |
| 2012 | 399 |
| 2013 | 409 |
| 2014 | 276 |
| 2015 | 312 |
| 2016 | 278 |
| 2017 | 337 |
| 2018 | 361 |
| 2019 | 321 |
| 2020 | 268 |
| 2021 | 145 |
| 2022 | 203 |
| 2023 | 186 |
| 2024 | 46 |