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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 2 |
| 1961 | 5 |
| 1962 | 2 |
| 1967 | 9 |
| 1968 | 34 |
| 1969 | 29 |
| 1970 | 53 |
| 1971 | 30 |
| 1972 | 52 |
| 1973 | 52 |
| 1974 | 41 |
| 1975 | 33 |
| 1976 | 19 |
| 1977 | 36 |
| 1978 | 27 |
| 1979 | 21 |
| 1980 | 25 |
| 1981 | 37 |
| 1982 | 36 |
| 1983 | 27 |
| 1984 | 34 |
| 1985 | 16 |
| 1986 | 16 |
| 1987 | 20 |
| 1988 | 21 |
| 1989 | 17 |
| 1990 | 31 |
| 1991 | 58 |
| 1992 | 50 |
| 1993 | 61 |
| 1994 | 65 |
| 1995 | 79 |
| 1996 | 87 |
| 1997 | 78 |
| 1998 | 128 |
| 1999 | 124 |
| 2000 | 154 |
| 2001 | 188 |
| 2002 | 257 |
| 2003 | 239 |
| 2004 | 261 |
| 2005 | 335 |
| 2006 | 370 |
| 2007 | 430 |
| 2008 | 509 |
| 2009 | 532 |
| 2010 | 581 |
| 2011 | 683 |
| 2012 | 670 |
| 2013 | 686 |
| 2014 | 676 |
| 2015 | 710 |
| 2016 | 625 |
| 2017 | 700 |
| 2018 | 729 |
| 2019 | 663 |
| 2020 | 587 |
| 2021 | 498 |
| 2022 | 247 |
| 2023 | 209 |
| 2024 | 51 |