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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 1 |
| 1961 | 5 |
| 1962 | 4 |
| 1963 | 5 |
| 1964 | 10 |
| 1965 | 5 |
| 1966 | 2 |
| 1967 | 1 |
| 1968 | 22 |
| 1969 | 88 |
| 1970 | 78 |
| 1971 | 124 |
| 1972 | 169 |
| 1973 | 117 |
| 1974 | 197 |
| 1975 | 145 |
| 1976 | 140 |
| 1977 | 351 |
| 1978 | 799 |
| 1979 | 950 |
| 1980 | 1134 |
| 1981 | 1307 |
| 1982 | 1768 |
| 1983 | 2306 |
| 1984 | 2747 |
| 1985 | 2760 |
| 1986 | 3024 |
| 1987 | 3617 |
| 1988 | 3619 |
| 1989 | 4148 |
| 1990 | 4575 |
| 1991 | 4764 |
| 1992 | 4603 |
| 1993 | 5483 |
| 1994 | 5890 |
| 1995 | 5949 |
| 1996 | 5316 |
| 1997 | 5409 |
| 1998 | 5307 |
| 1999 | 4866 |
| 2000 | 4767 |
| 2001 | 4665 |
| 2002 | 4611 |
| 2003 | 4726 |
| 2004 | 5301 |
| 2005 | 5257 |
| 2006 | 5694 |
| 2007 | 5821 |
| 2008 | 5761 |
| 2009 | 5639 |
| 2010 | 5700 |
| 2011 | 6123 |
| 2012 | 6877 |
| 2013 | 6173 |
| 2014 | 6243 |
| 2015 | 6249 |
| 2016 | 6258 |
| 2017 | 6391 |
| 2018 | 6642 |
| 2019 | 6700 |
| 2020 | 6937 |
| 2021 | 6076 |
| 2022 | 2953 |
| 2023 | 2053 |
| 2024 | 669 |