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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1964 | 4 |
| 1965 | 17 |
| 1966 | 45 |
| 1967 | 65 |
| 1968 | 90 |
| 1969 | 80 |
| 1970 | 85 |
| 1971 | 102 |
| 1972 | 101 |
| 1973 | 120 |
| 1974 | 116 |
| 1975 | 155 |
| 1976 | 123 |
| 1977 | 134 |
| 1978 | 105 |
| 1979 | 147 |
| 1980 | 161 |
| 1981 | 152 |
| 1982 | 168 |
| 1983 | 166 |
| 1984 | 150 |
| 1985 | 151 |
| 1986 | 157 |
| 1987 | 160 |
| 1988 | 157 |
| 1989 | 184 |
| 1990 | 171 |
| 1991 | 182 |
| 1992 | 235 |
| 1993 | 256 |
| 1994 | 218 |
| 1995 | 207 |
| 1996 | 224 |
| 1997 | 237 |
| 1998 | 295 |
| 1999 | 332 |
| 2000 | 361 |
| 2001 | 385 |
| 2002 | 412 |
| 2003 | 489 |
| 2004 | 482 |
| 2005 | 563 |
| 2006 | 621 |
| 2007 | 664 |
| 2008 | 697 |
| 2009 | 703 |
| 2010 | 781 |
| 2011 | 770 |
| 2012 | 822 |
| 2013 | 820 |
| 2014 | 840 |
| 2015 | 861 |
| 2016 | 885 |
| 2017 | 848 |
| 2018 | 804 |
| 2019 | 836 |
| 2020 | 624 |
| 2021 | 443 |
| 2022 | 321 |
| 2023 | 241 |
| 2024 | 188 |