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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 2 |
| 1965 | 1 |
| 1966 | 1 |
| 1967 | 2 |
| 1969 | 4 |
| 1970 | 6 |
| 1971 | 3 |
| 1972 | 5 |
| 1973 | 7 |
| 1974 | 4 |
| 1975 | 2 |
| 1976 | 4 |
| 1977 | 6 |
| 1978 | 8 |
| 1979 | 4 |
| 1980 | 5 |
| 1981 | 5 |
| 1982 | 9 |
| 1983 | 9 |
| 1984 | 9 |
| 1985 | 11 |
| 1986 | 12 |
| 1987 | 14 |
| 1988 | 10 |
| 1989 | 20 |
| 1990 | 18 |
| 1991 | 21 |
| 1992 | 14 |
| 1993 | 23 |
| 1994 | 32 |
| 1995 | 33 |
| 1996 | 39 |
| 1997 | 64 |
| 1998 | 76 |
| 1999 | 87 |
| 2000 | 105 |
| 2001 | 146 |
| 2002 | 148 |
| 2003 | 197 |
| 2004 | 232 |
| 2005 | 313 |
| 2006 | 352 |
| 2007 | 435 |
| 2008 | 512 |
| 2009 | 598 |
| 2010 | 637 |
| 2011 | 744 |
| 2012 | 764 |
| 2013 | 833 |
| 2014 | 868 |
| 2015 | 949 |
| 2016 | 987 |
| 2017 | 950 |
| 2018 | 984 |
| 2019 | 1064 |
| 2020 | 1112 |
| 2021 | 1120 |
| 2022 | 1035 |
| 2023 | 1022 |
| 2024 | 690 |