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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1958 | 1 |
| 1960 | 2 |
| 1962 | 1 |
| 1965 | 5 |
| 1966 | 1 |
| 1970 | 4 |
| 1971 | 2 |
| 1973 | 1 |
| 1975 | 2 |
| 1976 | 3 |
| 1978 | 1 |
| 1979 | 1 |
| 1982 | 1 |
| 1983 | 3 |
| 1984 | 2 |
| 1985 | 4 |
| 1986 | 4 |
| 1987 | 10 |
| 1988 | 2 |
| 1989 | 2 |
| 1990 | 6 |
| 1991 | 9 |
| 1992 | 8 |
| 1993 | 13 |
| 1994 | 20 |
| 1995 | 21 |
| 1996 | 27 |
| 1997 | 32 |
| 1998 | 48 |
| 1999 | 52 |
| 2000 | 81 |
| 2001 | 101 |
| 2002 | 118 |
| 2003 | 144 |
| 2004 | 171 |
| 2005 | 200 |
| 2006 | 260 |
| 2007 | 306 |
| 2008 | 342 |
| 2009 | 382 |
| 2010 | 431 |
| 2011 | 508 |
| 2012 | 561 |
| 2013 | 561 |
| 2014 | 618 |
| 2015 | 609 |
| 2016 | 713 |
| 2017 | 721 |
| 2018 | 708 |
| 2019 | 801 |
| 2020 | 885 |
| 2021 | 1015 |
| 2022 | 924 |
| 2023 | 406 |