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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 5 |
| 1967 | 5 |
| 1969 | 2 |
| 1971 | 2 |
| 1973 | 2 |
| 1974 | 7 |
| 1975 | 2 |
| 1976 | 11 |
| 1977 | 12 |
| 1978 | 18 |
| 1979 | 36 |
| 1980 | 399 |
| 1981 | 825 |
| 1982 | 863 |
| 1983 | 872 |
| 1984 | 949 |
| 1985 | 906 |
| 1986 | 920 |
| 1987 | 1004 |
| 1988 | 1019 |
| 1989 | 1088 |
| 1990 | 1165 |
| 1991 | 1120 |
| 1992 | 1253 |
| 1993 | 1358 |
| 1994 | 1449 |
| 1995 | 1412 |
| 1996 | 1454 |
| 1997 | 1634 |
| 1998 | 1579 |
| 1999 | 1742 |
| 2000 | 1827 |
| 2001 | 1898 |
| 2002 | 2026 |
| 2003 | 2219 |
| 2004 | 2475 |
| 2005 | 2876 |
| 2006 | 3276 |
| 2007 | 3427 |
| 2008 | 4098 |
| 2009 | 4222 |
| 2010 | 4267 |
| 2011 | 4805 |
| 2012 | 5136 |
| 2013 | 5538 |
| 2014 | 5601 |
| 2015 | 5625 |
| 2016 | 5382 |
| 2017 | 5257 |
| 2018 | 5369 |
| 2019 | 5428 |
| 2020 | 5586 |
| 2021 | 6045 |
| 2022 | 5439 |
| 2023 | 5280 |
| 2024 | 2958 |