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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 1 |
| 1966 | 1 |
| 1968 | 1 |
| 1969 | 1 |
| 1970 | 1 |
| 1971 | 3 |
| 1972 | 2 |
| 1973 | 1 |
| 1974 | 6 |
| 1975 | 6 |
| 1976 | 3 |
| 1977 | 3 |
| 1978 | 4 |
| 1979 | 1 |
| 1981 | 4 |
| 1982 | 1 |
| 1983 | 5 |
| 1984 | 1 |
| 1985 | 2 |
| 1986 | 2 |
| 1987 | 8 |
| 1988 | 14 |
| 1989 | 13 |
| 1990 | 23 |
| 1991 | 21 |
| 1992 | 17 |
| 1993 | 39 |
| 1994 | 48 |
| 1995 | 37 |
| 1996 | 38 |
| 1997 | 57 |
| 1998 | 71 |
| 1999 | 95 |
| 2000 | 123 |
| 2001 | 122 |
| 2002 | 130 |
| 2003 | 152 |
| 2004 | 142 |
| 2005 | 208 |
| 2006 | 248 |
| 2007 | 305 |
| 2008 | 304 |
| 2009 | 358 |
| 2010 | 406 |
| 2011 | 487 |
| 2012 | 504 |
| 2013 | 575 |
| 2014 | 698 |
| 2015 | 781 |
| 2016 | 791 |
| 2017 | 741 |
| 2018 | 707 |
| 2019 | 746 |
| 2020 | 871 |
| 2021 | 896 |
| 2022 | 904 |
| 2023 | 656 |