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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 2 |
| 1967 | 1 |
| 1971 | 1 |
| 1978 | 9 |
| 1979 | 17 |
| 1980 | 13 |
| 1981 | 21 |
| 1982 | 25 |
| 1983 | 18 |
| 1984 | 33 |
| 1985 | 30 |
| 1986 | 27 |
| 1987 | 33 |
| 1988 | 44 |
| 1989 | 48 |
| 1990 | 35 |
| 1991 | 50 |
| 1992 | 67 |
| 1993 | 90 |
| 1994 | 50 |
| 1995 | 49 |
| 1996 | 66 |
| 1997 | 67 |
| 1998 | 79 |
| 1999 | 85 |
| 2000 | 91 |
| 2001 | 121 |
| 2002 | 131 |
| 2003 | 150 |
| 2004 | 175 |
| 2005 | 147 |
| 2006 | 183 |
| 2007 | 205 |
| 2008 | 229 |
| 2009 | 232 |
| 2010 | 243 |
| 2011 | 246 |
| 2012 | 286 |
| 2013 | 300 |
| 2014 | 310 |
| 2015 | 278 |
| 2016 | 285 |
| 2017 | 275 |
| 2018 | 348 |
| 2019 | 283 |
| 2020 | 276 |
| 2021 | 183 |
| 2022 | 48 |
| 2023 | 37 |
| 2024 | 17 |