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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 2 |
| 1964 | 1 |
| 1966 | 3 |
| 1967 | 19 |
| 1968 | 50 |
| 1969 | 43 |
| 1970 | 35 |
| 1971 | 55 |
| 1972 | 70 |
| 1973 | 90 |
| 1974 | 93 |
| 1975 | 97 |
| 1976 | 77 |
| 1977 | 72 |
| 1978 | 66 |
| 1979 | 61 |
| 1980 | 61 |
| 1981 | 51 |
| 1982 | 63 |
| 1983 | 59 |
| 1984 | 65 |
| 1985 | 78 |
| 1986 | 99 |
| 1987 | 110 |
| 1988 | 94 |
| 1989 | 87 |
| 1990 | 127 |
| 1991 | 107 |
| 1992 | 119 |
| 1993 | 126 |
| 1994 | 148 |
| 1995 | 125 |
| 1996 | 120 |
| 1997 | 153 |
| 1998 | 169 |
| 1999 | 152 |
| 2000 | 224 |
| 2001 | 238 |
| 2002 | 245 |
| 2003 | 252 |
| 2004 | 360 |
| 2005 | 321 |
| 2006 | 330 |
| 2007 | 333 |
| 2008 | 400 |
| 2009 | 428 |
| 2010 | 425 |
| 2011 | 445 |
| 2012 | 486 |
| 2013 | 566 |
| 2014 | 530 |
| 2015 | 562 |
| 2016 | 501 |
| 2017 | 462 |
| 2018 | 443 |
| 2019 | 441 |
| 2020 | 406 |
| 2021 | 403 |
| 2022 | 281 |
| 2023 | 224 |
| 2024 | 85 |