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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 26 |
| 1962 | 105 |
| 1963 | 99 |
| 1964 | 117 |
| 1965 | 106 |
| 1966 | 144 |
| 1967 | 190 |
| 1968 | 152 |
| 1969 | 206 |
| 1970 | 196 |
| 1971 | 515 |
| 1972 | 198 |
| 1973 | 162 |
| 1974 | 511 |
| 1975 | 193 |
| 1976 | 176 |
| 1977 | 154 |
| 1978 | 184 |
| 1979 | 271 |
| 1980 | 237 |
| 1981 | 244 |
| 1982 | 281 |
| 1983 | 328 |
| 1984 | 253 |
| 1985 | 286 |
| 1986 | 298 |
| 1987 | 346 |
| 1988 | 293 |
| 1989 | 295 |
| 1990 | 301 |
| 1991 | 303 |
| 1992 | 228 |
| 1993 | 234 |
| 1994 | 194 |
| 1995 | 209 |
| 1996 | 255 |
| 1997 | 259 |
| 1998 | 230 |
| 1999 | 203 |
| 2000 | 229 |
| 2001 | 219 |
| 2002 | 193 |
| 2003 | 220 |
| 2004 | 131 |
| 2005 | 137 |
| 2006 | 149 |
| 2007 | 159 |
| 2008 | 124 |
| 2009 | 239 |
| 2010 | 159 |
| 2011 | 171 |
| 2012 | 166 |
| 2013 | 133 |
| 2014 | 152 |
| 2015 | 166 |
| 2016 | 183 |
| 2017 | 48 |
| 2024 | 0 |