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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 16 |
| 1972 | 35 |
| 1973 | 28 |
| 1974 | 44 |
| 1975 | 63 |
| 1976 | 49 |
| 1977 | 49 |
| 1978 | 53 |
| 1979 | 71 |
| 1980 | 44 |
| 1981 | 46 |
| 1982 | 48 |
| 1983 | 34 |
| 1984 | 75 |
| 1985 | 35 |
| 1986 | 49 |
| 1987 | 87 |
| 1988 | 60 |
| 1989 | 94 |
| 1990 | 100 |
| 1991 | 122 |
| 1992 | 101 |
| 1993 | 121 |
| 1994 | 133 |
| 1995 | 196 |
| 1996 | 160 |
| 1997 | 190 |
| 1998 | 172 |
| 1999 | 179 |
| 2000 | 125 |
| 2001 | 127 |
| 2002 | 156 |
| 2003 | 175 |
| 2004 | 150 |
| 2005 | 156 |
| 2006 | 161 |
| 2007 | 140 |
| 2008 | 132 |
| 2009 | 130 |
| 2010 | 112 |
| 2011 | 76 |
| 2012 | 49 |
| 2013 | 74 |
| 2014 | 67 |
| 2015 | 72 |
| 2016 | 59 |
| 2017 | 54 |
| 2018 | 59 |
| 2019 | 46 |
| 2020 | 68 |
| 2021 | 65 |
| 2022 | 48 |
| 2023 | 74 |
| 2024 | 22 |