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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1964 | 2 |
| 1965 | 5 |
| 1966 | 29 |
| 1967 | 50 |
| 1968 | 105 |
| 1969 | 117 |
| 1970 | 135 |
| 1971 | 181 |
| 1972 | 175 |
| 1973 | 192 |
| 1974 | 233 |
| 1975 | 200 |
| 1976 | 217 |
| 1977 | 213 |
| 1978 | 210 |
| 1979 | 206 |
| 1980 | 268 |
| 1981 | 252 |
| 1982 | 255 |
| 1983 | 270 |
| 1984 | 238 |
| 1985 | 292 |
| 1986 | 276 |
| 1987 | 284 |
| 1988 | 262 |
| 1989 | 399 |
| 1990 | 420 |
| 1991 | 423 |
| 1992 | 507 |
| 1993 | 428 |
| 1994 | 431 |
| 1995 | 437 |
| 1996 | 500 |
| 1997 | 424 |
| 1998 | 543 |
| 1999 | 488 |
| 2000 | 552 |
| 2001 | 585 |
| 2002 | 689 |
| 2003 | 778 |
| 2004 | 831 |
| 2005 | 920 |
| 2006 | 927 |
| 2007 | 1024 |
| 2008 | 1034 |
| 2009 | 1067 |
| 2010 | 1046 |
| 2011 | 1103 |
| 2012 | 911 |
| 2013 | 749 |
| 2014 | 734 |
| 2015 | 820 |
| 2016 | 723 |
| 2017 | 641 |
| 2018 | 620 |
| 2019 | 658 |
| 2020 | 644 |
| 2021 | 568 |
| 2022 | 623 |
| 2023 | 559 |
| 2024 | 158 |