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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 2 |
| 1963 | 5 |
| 1964 | 3 |
| 1965 | 1 |
| 1966 | 3 |
| 1967 | 3 |
| 1968 | 4 |
| 1969 | 1 |
| 1970 | 5 |
| 1971 | 3 |
| 1972 | 2 |
| 1973 | 4 |
| 1975 | 1 |
| 1976 | 3 |
| 1977 | 3 |
| 1978 | 2 |
| 1979 | 1 |
| 1980 | 2 |
| 1981 | 5 |
| 1982 | 4 |
| 1983 | 5 |
| 1984 | 8 |
| 1985 | 16 |
| 1986 | 19 |
| 1987 | 21 |
| 1988 | 23 |
| 1989 | 23 |
| 1990 | 26 |
| 1991 | 19 |
| 1992 | 21 |
| 1993 | 29 |
| 1994 | 44 |
| 1995 | 38 |
| 1996 | 50 |
| 1997 | 50 |
| 1998 | 68 |
| 1999 | 67 |
| 2000 | 93 |
| 2001 | 128 |
| 2002 | 119 |
| 2003 | 166 |
| 2004 | 197 |
| 2005 | 236 |
| 2006 | 237 |
| 2007 | 292 |
| 2008 | 357 |
| 2009 | 333 |
| 2010 | 400 |
| 2011 | 506 |
| 2012 | 543 |
| 2013 | 616 |
| 2014 | 556 |
| 2015 | 611 |
| 2016 | 717 |
| 2017 | 693 |
| 2018 | 719 |
| 2019 | 678 |
| 2020 | 703 |
| 2021 | 786 |
| 2022 | 716 |
| 2023 | 333 |