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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1968 | 1 |
| 1973 | 1 |
| 1974 | 8 |
| 1975 | 21 |
| 1976 | 15 |
| 1977 | 32 |
| 1978 | 26 |
| 1979 | 16 |
| 1980 | 19 |
| 1981 | 19 |
| 1982 | 28 |
| 1983 | 30 |
| 1984 | 30 |
| 1985 | 29 |
| 1986 | 44 |
| 1987 | 53 |
| 1988 | 62 |
| 1989 | 60 |
| 1990 | 85 |
| 1991 | 89 |
| 1992 | 90 |
| 1993 | 103 |
| 1994 | 88 |
| 1995 | 109 |
| 1996 | 89 |
| 1997 | 76 |
| 1998 | 81 |
| 1999 | 81 |
| 2000 | 89 |
| 2001 | 89 |
| 2002 | 96 |
| 2003 | 97 |
| 2004 | 104 |
| 2005 | 75 |
| 2006 | 109 |
| 2007 | 115 |
| 2008 | 118 |
| 2009 | 105 |
| 2010 | 82 |
| 2011 | 76 |
| 2012 | 100 |
| 2013 | 93 |
| 2014 | 84 |
| 2015 | 103 |
| 2016 | 84 |
| 2017 | 91 |
| 2018 | 67 |
| 2019 | 66 |
| 2020 | 51 |
| 2021 | 43 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 3 |