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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 4 |
| 1965 | 12 |
| 1966 | 31 |
| 1967 | 52 |
| 1968 | 53 |
| 1969 | 57 |
| 1970 | 63 |
| 1971 | 53 |
| 1972 | 149 |
| 1973 | 240 |
| 1974 | 379 |
| 1975 | 397 |
| 1976 | 386 |
| 1977 | 408 |
| 1978 | 465 |
| 1979 | 366 |
| 1980 | 400 |
| 1981 | 412 |
| 1982 | 415 |
| 1983 | 366 |
| 1984 | 448 |
| 1985 | 471 |
| 1986 | 417 |
| 1987 | 519 |
| 1988 | 568 |
| 1989 | 597 |
| 1990 | 641 |
| 1991 | 653 |
| 1992 | 705 |
| 1993 | 736 |
| 1994 | 748 |
| 1995 | 776 |
| 1996 | 759 |
| 1997 | 795 |
| 1998 | 777 |
| 1999 | 788 |
| 2000 | 830 |
| 2001 | 851 |
| 2002 | 867 |
| 2003 | 853 |
| 2004 | 937 |
| 2005 | 924 |
| 2006 | 935 |
| 2007 | 896 |
| 2008 | 907 |
| 2009 | 987 |
| 2010 | 988 |
| 2011 | 1003 |
| 2012 | 999 |
| 2013 | 927 |
| 2014 | 891 |
| 2015 | 840 |
| 2016 | 838 |
| 2017 | 807 |
| 2018 | 780 |
| 2019 | 695 |
| 2020 | 675 |
| 2021 | 548 |
| 2022 | 407 |
| 2023 | 304 |
| 2024 | 165 |