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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 36 |
| 1967 | 74 |
| 1968 | 89 |
| 1969 | 118 |
| 1970 | 175 |
| 1971 | 182 |
| 1972 | 173 |
| 1973 | 188 |
| 1974 | 198 |
| 1975 | 223 |
| 1976 | 277 |
| 1977 | 301 |
| 1978 | 270 |
| 1979 | 293 |
| 1980 | 337 |
| 1981 | 340 |
| 1982 | 380 |
| 1983 | 391 |
| 1984 | 382 |
| 1985 | 367 |
| 1986 | 353 |
| 1987 | 338 |
| 1988 | 360 |
| 1989 | 331 |
| 1990 | 346 |
| 1991 | 373 |
| 1992 | 363 |
| 1993 | 359 |
| 1994 | 366 |
| 1995 | 356 |
| 1996 | 325 |
| 1997 | 328 |
| 1998 | 303 |
| 1999 | 337 |
| 2000 | 318 |
| 2001 | 294 |
| 2002 | 308 |
| 2003 | 288 |
| 2004 | 312 |
| 2005 | 283 |
| 2006 | 276 |
| 2007 | 314 |
| 2008 | 288 |
| 2009 | 288 |
| 2010 | 258 |
| 2011 | 192 |
| 2012 | 181 |
| 2013 | 199 |
| 2014 | 299 |
| 2015 | 245 |
| 2016 | 207 |
| 2017 | 217 |
| 2018 | 186 |
| 2019 | 34 |
| 2024 | 0 |