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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 2 |
| 1971 | 1 |
| 1974 | 2 |
| 1978 | 1 |
| 1979 | 27 |
| 1980 | 58 |
| 1981 | 57 |
| 1982 | 51 |
| 1983 | 44 |
| 1984 | 56 |
| 1985 | 53 |
| 1986 | 42 |
| 1987 | 38 |
| 1988 | 40 |
| 1989 | 43 |
| 1990 | 61 |
| 1991 | 56 |
| 1992 | 46 |
| 1993 | 37 |
| 1994 | 48 |
| 1995 | 43 |
| 1996 | 39 |
| 1997 | 46 |
| 1998 | 27 |
| 1999 | 40 |
| 2000 | 46 |
| 2001 | 43 |
| 2002 | 32 |
| 2003 | 69 |
| 2004 | 148 |
| 2005 | 126 |
| 2006 | 132 |
| 2007 | 179 |
| 2008 | 216 |
| 2009 | 190 |
| 2010 | 202 |
| 2011 | 255 |
| 2012 | 271 |
| 2013 | 231 |
| 2014 | 224 |
| 2015 | 257 |
| 2016 | 260 |
| 2017 | 234 |
| 2018 | 200 |
| 2019 | 206 |
| 2020 | 202 |
| 2021 | 178 |
| 2022 | 142 |
| 2023 | 82 |
| 2024 | 36 |