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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 90 |
| 1966 | 92 |
| 1967 | 89 |
| 1968 | 75 |
| 1969 | 107 |
| 1970 | 118 |
| 1971 | 137 |
| 1972 | 137 |
| 1973 | 176 |
| 1974 | 150 |
| 1975 | 150 |
| 1976 | 191 |
| 1977 | 327 |
| 1978 | 300 |
| 1979 | 283 |
| 1980 | 411 |
| 1981 | 208 |
| 1982 | 173 |
| 1983 | 136 |
| 1984 | 124 |
| 1985 | 121 |
| 1986 | 133 |
| 1987 | 146 |
| 1988 | 187 |
| 1989 | 210 |
| 1990 | 191 |
| 1991 | 212 |
| 1992 | 221 |
| 1993 | 174 |
| 1994 | 152 |
| 1995 | 141 |
| 1996 | 214 |
| 1997 | 199 |
| 1998 | 168 |
| 1999 | 183 |
| 2000 | 234 |
| 2001 | 235 |
| 2002 | 218 |
| 2003 | 221 |
| 2004 | 204 |
| 2005 | 172 |
| 2006 | 153 |
| 2007 | 149 |
| 2008 | 123 |
| 2009 | 140 |
| 2010 | 158 |
| 2011 | 126 |
| 2012 | 119 |
| 2013 | 133 |
| 2014 | 146 |
| 2015 | 105 |
| 2016 | 101 |
| 2017 | 23 |
| 2025 | 0 |