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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1964 | 3 |
| 1965 | 53 |
| 1966 | 77 |
| 1967 | 97 |
| 1968 | 137 |
| 1969 | 167 |
| 1970 | 250 |
| 1971 | 266 |
| 1972 | 296 |
| 1973 | 351 |
| 1974 | 393 |
| 1975 | 382 |
| 1976 | 254 |
| 1977 | 277 |
| 1978 | 267 |
| 1979 | 297 |
| 1980 | 217 |
| 1981 | 253 |
| 1982 | 295 |
| 1983 | 283 |
| 1984 | 332 |
| 1985 | 418 |
| 1986 | 382 |
| 1987 | 338 |
| 1988 | 339 |
| 1989 | 386 |
| 1990 | 338 |
| 1991 | 315 |
| 1992 | 348 |
| 1993 | 334 |
| 1994 | 320 |
| 1995 | 342 |
| 1996 | 357 |
| 1997 | 359 |
| 1998 | 465 |
| 1999 | 357 |
| 2000 | 369 |
| 2001 | 387 |
| 2002 | 405 |
| 2003 | 346 |
| 2004 | 373 |
| 2005 | 411 |
| 2006 | 388 |
| 2007 | 441 |
| 2008 | 441 |
| 2009 | 388 |
| 2010 | 380 |
| 2011 | 433 |
| 2012 | 450 |
| 2013 | 482 |
| 2014 | 453 |
| 2015 | 494 |
| 2016 | 478 |
| 2017 | 502 |
| 2018 | 445 |
| 2019 | 444 |
| 2020 | 419 |
| 2021 | 350 |
| 2022 | 347 |
| 2023 | 340 |
| 2024 | 333 |
| 2025 | 15 |