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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 2 |
| 1974 | 1 |
| 1975 | 10 |
| 1976 | 17 |
| 1977 | 16 |
| 1978 | 18 |
| 1979 | 24 |
| 1980 | 15 |
| 1981 | 27 |
| 1982 | 32 |
| 1983 | 32 |
| 1984 | 35 |
| 1985 | 40 |
| 1986 | 40 |
| 1987 | 45 |
| 1988 | 54 |
| 1989 | 50 |
| 1990 | 60 |
| 1991 | 71 |
| 1992 | 49 |
| 1993 | 54 |
| 1994 | 53 |
| 1995 | 45 |
| 1996 | 48 |
| 1997 | 62 |
| 1998 | 63 |
| 1999 | 84 |
| 2000 | 80 |
| 2001 | 99 |
| 2002 | 69 |
| 2003 | 90 |
| 2004 | 91 |
| 2005 | 100 |
| 2006 | 124 |
| 2007 | 112 |
| 2008 | 125 |
| 2009 | 142 |
| 2010 | 146 |
| 2011 | 158 |
| 2012 | 169 |
| 2013 | 140 |
| 2014 | 156 |
| 2015 | 149 |
| 2016 | 108 |
| 2017 | 146 |
| 2018 | 140 |
| 2019 | 123 |
| 2020 | 116 |
| 2021 | 100 |
| 2022 | 44 |
| 2023 | 31 |
| 2024 | 32 |