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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 1 |
| 1964 | 1 |
| 1965 | 1 |
| 1971 | 2 |
| 1972 | 7 |
| 1973 | 22 |
| 1974 | 32 |
| 1975 | 33 |
| 1976 | 59 |
| 1977 | 51 |
| 1978 | 85 |
| 1979 | 110 |
| 1980 | 112 |
| 1981 | 150 |
| 1982 | 170 |
| 1983 | 221 |
| 1984 | 219 |
| 1985 | 222 |
| 1986 | 255 |
| 1987 | 269 |
| 1988 | 201 |
| 1989 | 218 |
| 1990 | 179 |
| 1991 | 198 |
| 1992 | 245 |
| 1993 | 196 |
| 1994 | 253 |
| 1995 | 291 |
| 1996 | 296 |
| 1997 | 386 |
| 1998 | 343 |
| 1999 | 370 |
| 2000 | 398 |
| 2001 | 362 |
| 2002 | 392 |
| 2003 | 403 |
| 2004 | 453 |
| 2005 | 443 |
| 2006 | 474 |
| 2007 | 432 |
| 2008 | 463 |
| 2009 | 392 |
| 2010 | 469 |
| 2011 | 454 |
| 2012 | 469 |
| 2013 | 498 |
| 2014 | 427 |
| 2015 | 424 |
| 2016 | 353 |
| 2017 | 360 |
| 2018 | 330 |
| 2019 | 309 |
| 2020 | 1431 |
| 2021 | 420 |
| 2022 | 591 |
| 2023 | 345 |
| 2024 | 262 |
| 2025 | 60 |