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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1970 | 79 |
| 1971 | 91 |
| 1972 | 134 |
| 1973 | 118 |
| 1974 | 103 |
| 1975 | 107 |
| 1976 | 127 |
| 1977 | 131 |
| 1978 | 136 |
| 1979 | 103 |
| 1980 | 127 |
| 1981 | 118 |
| 1982 | 158 |
| 1983 | 159 |
| 1984 | 173 |
| 1985 | 200 |
| 1986 | 229 |
| 1987 | 208 |
| 1988 | 214 |
| 1989 | 216 |
| 1990 | 264 |
| 1991 | 214 |
| 1992 | 215 |
| 1993 | 218 |
| 1994 | 210 |
| 1995 | 200 |
| 1996 | 201 |
| 1997 | 163 |
| 1998 | 197 |
| 1999 | 220 |
| 2000 | 203 |
| 2001 | 208 |
| 2002 | 205 |
| 2003 | 203 |
| 2004 | 179 |
| 2005 | 170 |
| 2006 | 171 |
| 2007 | 231 |
| 2008 | 184 |
| 2009 | 130 |
| 2010 | 95 |
| 2011 | 95 |
| 2012 | 86 |
| 2013 | 97 |
| 2014 | 109 |
| 2015 | 97 |
| 2016 | 113 |
| 2017 | 60 |
| 2021 | 1 |
| 2025 | 0 |