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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 2 |
| 1966 | 7 |
| 1967 | 6 |
| 1968 | 3 |
| 1969 | 2 |
| 1970 | 7 |
| 1971 | 7 |
| 1973 | 2 |
| 1974 | 5 |
| 1975 | 7 |
| 1976 | 3 |
| 1977 | 47 |
| 1978 | 35 |
| 1979 | 35 |
| 1980 | 1318 |
| 1981 | 3097 |
| 1982 | 3188 |
| 1983 | 3375 |
| 1984 | 3514 |
| 1985 | 3495 |
| 1986 | 3608 |
| 1987 | 3808 |
| 1988 | 3928 |
| 1989 | 4121 |
| 1990 | 4309 |
| 1991 | 4573 |
| 1992 | 4759 |
| 1993 | 4909 |
| 1994 | 5017 |
| 1995 | 5053 |
| 1996 | 4926 |
| 1997 | 4815 |
| 1998 | 4983 |
| 1999 | 5342 |
| 2000 | 5447 |
| 2001 | 5801 |
| 2002 | 5810 |
| 2003 | 6199 |
| 2004 | 6904 |
| 2005 | 7750 |
| 2006 | 8772 |
| 2007 | 9585 |
| 2008 | 10338 |
| 2009 | 11149 |
| 2010 | 12332 |
| 2011 | 13431 |
| 2012 | 13957 |
| 2013 | 14580 |
| 2014 | 14726 |
| 2015 | 14612 |
| 2016 | 14063 |
| 2017 | 13717 |
| 2018 | 13958 |
| 2019 | 14255 |
| 2020 | 15880 |
| 2021 | 17077 |
| 2022 | 14905 |
| 2023 | 14049 |
| 2024 | 4766 |