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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 1 |
| 1960 | 3 |
| 1962 | 19 |
| 1963 | 119 |
| 1964 | 135 |
| 1965 | 99 |
| 1966 | 103 |
| 1967 | 135 |
| 1968 | 139 |
| 1969 | 158 |
| 1970 | 145 |
| 1971 | 226 |
| 1972 | 252 |
| 1973 | 232 |
| 1974 | 284 |
| 1975 | 234 |
| 1976 | 215 |
| 1977 | 211 |
| 1978 | 159 |
| 1979 | 137 |
| 1980 | 144 |
| 1981 | 110 |
| 1982 | 106 |
| 1983 | 101 |
| 1984 | 120 |
| 1985 | 140 |
| 1986 | 119 |
| 1987 | 199 |
| 1988 | 181 |
| 1989 | 256 |
| 1990 | 359 |
| 1991 | 386 |
| 1992 | 447 |
| 1993 | 455 |
| 1994 | 364 |
| 1995 | 414 |
| 1996 | 439 |
| 1997 | 361 |
| 1998 | 369 |
| 1999 | 348 |
| 2000 | 388 |
| 2001 | 542 |
| 2002 | 627 |
| 2003 | 630 |
| 2004 | 451 |
| 2005 | 436 |
| 2006 | 551 |
| 2007 | 557 |
| 2008 | 545 |
| 2009 | 467 |
| 2010 | 409 |
| 2011 | 332 |
| 2012 | 369 |
| 2013 | 373 |
| 2014 | 401 |
| 2015 | 480 |
| 2016 | 446 |
| 2017 | 430 |
| 2018 | 595 |
| 2019 | 507 |
| 2020 | 440 |
| 2021 | 409 |
| 2022 | 100 |
| 2023 | 7 |
| 2024 | 2 |