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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 1 |
| 1961 | 1 |
| 1965 | 3 |
| 1966 | 11 |
| 1967 | 14 |
| 1968 | 18 |
| 1969 | 14 |
| 1970 | 25 |
| 1971 | 31 |
| 1972 | 23 |
| 1973 | 29 |
| 1974 | 44 |
| 1975 | 43 |
| 1976 | 47 |
| 1977 | 76 |
| 1978 | 88 |
| 1979 | 105 |
| 1980 | 154 |
| 1981 | 152 |
| 1982 | 234 |
| 1983 | 242 |
| 1984 | 293 |
| 1985 | 337 |
| 1986 | 322 |
| 1987 | 277 |
| 1988 | 298 |
| 1989 | 363 |
| 1990 | 426 |
| 1991 | 437 |
| 1992 | 439 |
| 1993 | 506 |
| 1994 | 500 |
| 1995 | 502 |
| 1996 | 536 |
| 1997 | 552 |
| 1998 | 558 |
| 1999 | 590 |
| 2000 | 631 |
| 2001 | 687 |
| 2002 | 645 |
| 2003 | 715 |
| 2004 | 752 |
| 2005 | 740 |
| 2006 | 738 |
| 2007 | 819 |
| 2008 | 842 |
| 2009 | 816 |
| 2010 | 900 |
| 2011 | 856 |
| 2012 | 916 |
| 2013 | 1004 |
| 2014 | 954 |
| 2015 | 959 |
| 2016 | 905 |
| 2017 | 876 |
| 2018 | 857 |
| 2019 | 842 |
| 2020 | 875 |
| 2021 | 696 |
| 2022 | 439 |
| 2023 | 390 |
| 2024 | 151 |