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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 40 |
| 1972 | 61 |
| 1973 | 55 |
| 1974 | 50 |
| 1975 | 106 |
| 1976 | 94 |
| 1977 | 90 |
| 1978 | 134 |
| 1979 | 117 |
| 1980 | 122 |
| 1981 | 132 |
| 1982 | 109 |
| 1983 | 124 |
| 1984 | 100 |
| 1985 | 89 |
| 1986 | 87 |
| 1987 | 80 |
| 1988 | 76 |
| 1989 | 80 |
| 1990 | 84 |
| 1991 | 88 |
| 1992 | 100 |
| 1993 | 94 |
| 1994 | 114 |
| 1995 | 130 |
| 1996 | 182 |
| 1997 | 227 |
| 1998 | 183 |
| 1999 | 173 |
| 2000 | 189 |
| 2001 | 161 |
| 2002 | 177 |
| 2003 | 135 |
| 2004 | 189 |
| 2005 | 161 |
| 2006 | 206 |
| 2007 | 307 |
| 2008 | 206 |
| 2009 | 254 |
| 2010 | 190 |
| 2011 | 247 |
| 2012 | 218 |
| 2013 | 236 |
| 2014 | 244 |
| 2015 | 199 |
| 2024 | 0 |