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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 2 |
| 1953 | 1 |
| 1956 | 3 |
| 1957 | 4 |
| 1965 | 2 |
| 1967 | 1 |
| 1974 | 9 |
| 1975 | 1 |
| 1978 | 8 |
| 1979 | 82 |
| 1980 | 169 |
| 1981 | 159 |
| 1982 | 217 |
| 1983 | 277 |
| 1984 | 333 |
| 1985 | 365 |
| 1986 | 369 |
| 1987 | 345 |
| 1988 | 401 |
| 1989 | 467 |
| 1990 | 451 |
| 1991 | 377 |
| 1992 | 324 |
| 1993 | 374 |
| 1994 | 299 |
| 1995 | 329 |
| 1996 | 331 |
| 1997 | 440 |
| 1998 | 336 |
| 1999 | 398 |
| 2000 | 340 |
| 2001 | 340 |
| 2002 | 365 |
| 2003 | 351 |
| 2004 | 344 |
| 2005 | 406 |
| 2006 | 400 |
| 2007 | 404 |
| 2008 | 408 |
| 2009 | 443 |
| 2010 | 447 |
| 2011 | 518 |
| 2012 | 1155 |
| 2013 | 2055 |
| 2014 | 2693 |
| 2015 | 2904 |
| 2016 | 2953 |
| 2017 | 3072 |
| 2018 | 3220 |
| 2019 | 3127 |
| 2020 | 2574 |
| 2021 | 1607 |
| 2022 | 678 |
| 2023 | 435 |
| 2024 | 2285 |
| 2025 | 1780 |