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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1966 | 2 |
| 1967 | 2 |
| 1968 | 2 |
| 1969 | 3 |
| 1970 | 4 |
| 1971 | 11 |
| 1972 | 7 |
| 1973 | 12 |
| 1974 | 9 |
| 1975 | 11 |
| 1976 | 5 |
| 1977 | 11 |
| 1978 | 27 |
| 1979 | 39 |
| 1980 | 39 |
| 1981 | 59 |
| 1982 | 57 |
| 1983 | 50 |
| 1984 | 64 |
| 1985 | 70 |
| 1986 | 111 |
| 1987 | 117 |
| 1988 | 172 |
| 1989 | 216 |
| 1990 | 306 |
| 1991 | 287 |
| 1992 | 352 |
| 1993 | 239 |
| 1994 | 218 |
| 1995 | 252 |
| 1996 | 319 |
| 1997 | 310 |
| 1998 | 357 |
| 1999 | 366 |
| 2000 | 396 |
| 2001 | 382 |
| 2002 | 421 |
| 2003 | 521 |
| 2004 | 396 |
| 2005 | 409 |
| 2006 | 474 |
| 2007 | 468 |
| 2008 | 586 |
| 2009 | 485 |
| 2010 | 583 |
| 2011 | 556 |
| 2012 | 602 |
| 2013 | 611 |
| 2014 | 572 |
| 2015 | 571 |
| 2016 | 517 |
| 2017 | 488 |
| 2018 | 553 |
| 2019 | 583 |
| 2020 | 506 |
| 2021 | 236 |
| 2022 | 48 |
| 2023 | 18 |
| 2024 | 208 |
| 2025 | 518 |
| 2026 | 9 |