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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1967 | 2 |
| 1968 | 1 |
| 1973 | 1 |
| 1974 | 10 |
| 1975 | 24 |
| 1976 | 42 |
| 1977 | 22 |
| 1978 | 31 |
| 1979 | 31 |
| 1980 | 35 |
| 1981 | 34 |
| 1982 | 35 |
| 1983 | 34 |
| 1984 | 45 |
| 1985 | 33 |
| 1986 | 38 |
| 1987 | 57 |
| 1988 | 63 |
| 1989 | 64 |
| 1990 | 54 |
| 1991 | 47 |
| 1992 | 47 |
| 1993 | 37 |
| 1994 | 51 |
| 1995 | 233 |
| 1996 | 481 |
| 1997 | 549 |
| 1998 | 568 |
| 1999 | 502 |
| 2000 | 560 |
| 2001 | 569 |
| 2002 | 503 |
| 2003 | 562 |
| 2004 | 534 |
| 2005 | 599 |
| 2006 | 609 |
| 2007 | 737 |
| 2008 | 824 |
| 2009 | 766 |
| 2010 | 832 |
| 2011 | 888 |
| 2012 | 949 |
| 2013 | 962 |
| 2014 | 1063 |
| 2015 | 1168 |
| 2016 | 1115 |
| 2017 | 1287 |
| 2018 | 1409 |
| 2019 | 1655 |
| 2020 | 1413 |
| 2021 | 1009 |
| 2022 | 523 |
| 2023 | 404 |
| 2024 | 137 |