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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1965 | 1 |
| 1966 | 7 |
| 1967 | 8 |
| 1968 | 6 |
| 1969 | 7 |
| 1970 | 4 |
| 1971 | 12 |
| 1972 | 12 |
| 1973 | 15 |
| 1974 | 26 |
| 1975 | 15 |
| 1976 | 32 |
| 1977 | 23 |
| 1978 | 18 |
| 1979 | 27 |
| 1980 | 41 |
| 1981 | 34 |
| 1982 | 22 |
| 1983 | 37 |
| 1984 | 39 |
| 1985 | 41 |
| 1986 | 47 |
| 1987 | 62 |
| 1988 | 55 |
| 1989 | 60 |
| 1990 | 51 |
| 1991 | 72 |
| 1992 | 75 |
| 1993 | 95 |
| 1994 | 117 |
| 1995 | 133 |
| 1996 | 136 |
| 1997 | 182 |
| 1998 | 203 |
| 1999 | 220 |
| 2000 | 333 |
| 2001 | 247 |
| 2002 | 342 |
| 2003 | 360 |
| 2004 | 417 |
| 2005 | 444 |
| 2006 | 463 |
| 2007 | 500 |
| 2008 | 538 |
| 2009 | 585 |
| 2010 | 616 |
| 2011 | 679 |
| 2012 | 689 |
| 2013 | 744 |
| 2014 | 753 |
| 2015 | 694 |
| 2016 | 704 |
| 2017 | 722 |
| 2018 | 646 |
| 2019 | 651 |
| 2020 | 739 |
| 2021 | 794 |
| 2022 | 637 |
| 2023 | 624 |
| 2024 | 255 |