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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 5 |
| 1973 | 12 |
| 1974 | 8 |
| 1975 | 24 |
| 1976 | 25 |
| 1977 | 28 |
| 1978 | 27 |
| 1979 | 17 |
| 1980 | 32 |
| 1981 | 36 |
| 1982 | 40 |
| 1983 | 48 |
| 1984 | 57 |
| 1985 | 50 |
| 1986 | 56 |
| 1987 | 67 |
| 1988 | 61 |
| 1989 | 76 |
| 1990 | 82 |
| 1991 | 94 |
| 1992 | 100 |
| 1993 | 105 |
| 1994 | 131 |
| 1995 | 113 |
| 1996 | 156 |
| 1997 | 154 |
| 1998 | 135 |
| 1999 | 139 |
| 2000 | 149 |
| 2001 | 185 |
| 2002 | 178 |
| 2003 | 193 |
| 2004 | 182 |
| 2005 | 163 |
| 2006 | 166 |
| 2007 | 198 |
| 2008 | 194 |
| 2009 | 182 |
| 2010 | 201 |
| 2011 | 194 |
| 2012 | 197 |
| 2013 | 196 |
| 2014 | 176 |
| 2015 | 176 |
| 2016 | 166 |
| 2017 | 125 |
| 2018 | 141 |
| 2019 | 109 |
| 2020 | 153 |
| 2021 | 144 |
| 2022 | 107 |
| 2023 | 79 |
| 2024 | 34 |