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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 1 |
| 1970 | 1 |
| 1971 | 5 |
| 1972 | 1 |
| 1973 | 2 |
| 1974 | 62 |
| 1975 | 110 |
| 1976 | 131 |
| 1977 | 84 |
| 1978 | 132 |
| 1979 | 122 |
| 1980 | 120 |
| 1981 | 118 |
| 1982 | 119 |
| 1983 | 138 |
| 1984 | 107 |
| 1985 | 91 |
| 1986 | 92 |
| 1987 | 107 |
| 1988 | 126 |
| 1989 | 107 |
| 1990 | 126 |
| 1991 | 126 |
| 1992 | 116 |
| 1993 | 137 |
| 1994 | 79 |
| 1995 | 92 |
| 1996 | 135 |
| 1997 | 97 |
| 1998 | 84 |
| 1999 | 83 |
| 2000 | 112 |
| 2001 | 82 |
| 2002 | 97 |
| 2003 | 82 |
| 2004 | 84 |
| 2005 | 67 |
| 2006 | 104 |
| 2007 | 65 |
| 2008 | 69 |
| 2009 | 55 |
| 2010 | 76 |
| 2011 | 67 |
| 2012 | 76 |
| 2013 | 68 |
| 2014 | 46 |
| 2015 | 61 |
| 2016 | 51 |
| 2017 | 48 |
| 2018 | 34 |
| 2019 | 37 |
| 2020 | 35 |
| 2021 | 31 |
| 2022 | 7 |
| 2023 | 2 |
| 2024 | 2 |