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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1969 | 5 |
| 1971 | 1 |
| 1974 | 1 |
| 1975 | 7 |
| 1976 | 16 |
| 1977 | 17 |
| 1978 | 27 |
| 1979 | 15 |
| 1980 | 20 |
| 1981 | 16 |
| 1982 | 21 |
| 1983 | 23 |
| 1984 | 25 |
| 1985 | 23 |
| 1986 | 28 |
| 1987 | 17 |
| 1988 | 31 |
| 1989 | 40 |
| 1990 | 30 |
| 1991 | 43 |
| 1992 | 50 |
| 1993 | 64 |
| 1994 | 61 |
| 1995 | 70 |
| 1996 | 59 |
| 1997 | 97 |
| 1998 | 124 |
| 1999 | 110 |
| 2000 | 96 |
| 2001 | 117 |
| 2002 | 105 |
| 2003 | 117 |
| 2004 | 131 |
| 2005 | 174 |
| 2006 | 211 |
| 2007 | 192 |
| 2008 | 239 |
| 2009 | 198 |
| 2010 | 263 |
| 2011 | 244 |
| 2012 | 327 |
| 2013 | 331 |
| 2014 | 316 |
| 2015 | 309 |
| 2016 | 198 |
| 2017 | 126 |
| 2018 | 111 |
| 2019 | 89 |
| 2020 | 64 |
| 2021 | 41 |
| 2022 | 26 |
| 2023 | 14 |
| 2024 | 6 |