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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1965 | 31 |
| 1966 | 77 |
| 1967 | 82 |
| 1968 | 94 |
| 1969 | 94 |
| 1970 | 146 |
| 1971 | 135 |
| 1972 | 147 |
| 1973 | 113 |
| 1974 | 148 |
| 1975 | 145 |
| 1976 | 141 |
| 1977 | 169 |
| 1978 | 172 |
| 1979 | 179 |
| 1980 | 224 |
| 1981 | 251 |
| 1982 | 310 |
| 1983 | 300 |
| 1984 | 381 |
| 1985 | 453 |
| 1986 | 458 |
| 1987 | 473 |
| 1988 | 619 |
| 1989 | 675 |
| 1990 | 730 |
| 1991 | 793 |
| 1992 | 874 |
| 1993 | 1168 |
| 1994 | 1329 |
| 1995 | 1463 |
| 1996 | 1632 |
| 1997 | 1639 |
| 1998 | 1594 |
| 1999 | 1556 |
| 2000 | 1614 |
| 2001 | 1629 |
| 2002 | 1605 |
| 2003 | 1406 |
| 2004 | 1402 |
| 2005 | 1548 |
| 2006 | 1424 |
| 2007 | 1368 |
| 2008 | 1359 |
| 2009 | 1257 |
| 2010 | 1244 |
| 2011 | 1264 |
| 2012 | 1159 |
| 2013 | 1025 |
| 2014 | 956 |
| 2015 | 974 |
| 2016 | 770 |
| 2017 | 577 |
| 2018 | 531 |
| 2019 | 451 |
| 2020 | 400 |
| 2021 | 310 |
| 2022 | 63 |
| 2023 | 7 |
| 2024 | 3 |