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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 1 |
| 1961 | 1 |
| 1962 | 1 |
| 1965 | 1 |
| 1966 | 14 |
| 1967 | 4 |
| 1968 | 3 |
| 1969 | 5 |
| 1970 | 6 |
| 1971 | 2 |
| 1972 | 5 |
| 1973 | 1 |
| 1974 | 3 |
| 1975 | 8 |
| 1976 | 6 |
| 1977 | 11 |
| 1978 | 22 |
| 1979 | 297 |
| 1980 | 416 |
| 1981 | 397 |
| 1982 | 487 |
| 1983 | 527 |
| 1984 | 595 |
| 1985 | 696 |
| 1986 | 743 |
| 1987 | 889 |
| 1988 | 988 |
| 1989 | 791 |
| 1990 | 752 |
| 1991 | 853 |
| 1992 | 937 |
| 1993 | 1027 |
| 1994 | 1056 |
| 1995 | 1140 |
| 1996 | 1145 |
| 1997 | 1148 |
| 1998 | 1237 |
| 1999 | 1447 |
| 2000 | 1339 |
| 2001 | 1522 |
| 2002 | 1653 |
| 2003 | 1622 |
| 2004 | 1501 |
| 2005 | 1483 |
| 2006 | 1544 |
| 2007 | 1591 |
| 2008 | 1605 |
| 2009 | 1552 |
| 2010 | 1714 |
| 2011 | 1655 |
| 2012 | 1639 |
| 2013 | 1733 |
| 2014 | 2267 |
| 2015 | 2348 |
| 2016 | 1874 |
| 2017 | 1121 |
| 2018 | 985 |
| 2019 | 916 |
| 2020 | 676 |
| 2021 | 461 |
| 2022 | 54 |
| 2023 | 1 |
| 2024 | 22 |