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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 1 |
| 1962 | 3 |
| 1964 | 1 |
| 1965 | 2 |
| 1966 | 1 |
| 1967 | 1 |
| 1968 | 1 |
| 1969 | 1 |
| 1970 | 1 |
| 1971 | 3 |
| 1972 | 1 |
| 1973 | 5 |
| 1974 | 1 |
| 1975 | 7 |
| 1976 | 5 |
| 1977 | 9 |
| 1978 | 8 |
| 1979 | 4 |
| 1980 | 8 |
| 1981 | 3 |
| 1982 | 3 |
| 1983 | 8 |
| 1984 | 9 |
| 1985 | 15 |
| 1986 | 16 |
| 1987 | 16 |
| 1988 | 18 |
| 1989 | 31 |
| 1990 | 26 |
| 1991 | 41 |
| 1992 | 35 |
| 1993 | 30 |
| 1994 | 49 |
| 1995 | 46 |
| 1996 | 47 |
| 1997 | 70 |
| 1998 | 87 |
| 1999 | 89 |
| 2000 | 120 |
| 2001 | 127 |
| 2002 | 139 |
| 2003 | 151 |
| 2004 | 195 |
| 2005 | 244 |
| 2006 | 262 |
| 2007 | 319 |
| 2008 | 394 |
| 2009 | 426 |
| 2010 | 530 |
| 2011 | 598 |
| 2012 | 647 |
| 2013 | 736 |
| 2014 | 710 |
| 2015 | 720 |
| 2016 | 777 |
| 2017 | 775 |
| 2018 | 804 |
| 2019 | 815 |
| 2020 | 892 |
| 2021 | 1007 |
| 2022 | 860 |
| 2023 | 378 |