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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 52 |
| 1967 | 46 |
| 1968 | 58 |
| 1969 | 75 |
| 1970 | 75 |
| 1971 | 84 |
| 1972 | 79 |
| 1973 | 108 |
| 1974 | 119 |
| 1975 | 91 |
| 1976 | 108 |
| 1977 | 176 |
| 1978 | 138 |
| 1979 | 187 |
| 1980 | 176 |
| 1981 | 236 |
| 1982 | 259 |
| 1983 | 208 |
| 1984 | 258 |
| 1985 | 286 |
| 1986 | 285 |
| 1987 | 276 |
| 1988 | 323 |
| 1989 | 346 |
| 1990 | 322 |
| 1991 | 352 |
| 1992 | 306 |
| 1993 | 285 |
| 1994 | 272 |
| 1995 | 252 |
| 1996 | 270 |
| 1997 | 288 |
| 1998 | 340 |
| 1999 | 353 |
| 2000 | 336 |
| 2001 | 392 |
| 2002 | 422 |
| 2003 | 476 |
| 2004 | 489 |
| 2005 | 684 |
| 2006 | 676 |
| 2007 | 622 |
| 2008 | 583 |
| 2009 | 569 |
| 2010 | 524 |
| 2011 | 520 |
| 2012 | 470 |
| 2013 | 506 |
| 2014 | 457 |
| 2015 | 432 |
| 2016 | 429 |
| 2017 | 386 |
| 2018 | 357 |
| 2019 | 317 |
| 2020 | 300 |
| 2021 | 329 |
| 2022 | 299 |
| 2023 | 259 |
| 2024 | 111 |