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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 4 |
| 1964 | 3 |
| 1965 | 10 |
| 1966 | 20 |
| 1967 | 23 |
| 1968 | 20 |
| 1969 | 36 |
| 1970 | 27 |
| 1971 | 32 |
| 1972 | 32 |
| 1973 | 28 |
| 1974 | 31 |
| 1975 | 19 |
| 1976 | 22 |
| 1977 | 21 |
| 1978 | 31 |
| 1979 | 40 |
| 1980 | 48 |
| 1981 | 51 |
| 1982 | 72 |
| 1983 | 75 |
| 1984 | 104 |
| 1985 | 105 |
| 1986 | 117 |
| 1987 | 94 |
| 1988 | 131 |
| 1989 | 118 |
| 1990 | 129 |
| 1991 | 131 |
| 1992 | 125 |
| 1993 | 183 |
| 1994 | 176 |
| 1995 | 193 |
| 1996 | 209 |
| 1997 | 221 |
| 1998 | 223 |
| 1999 | 246 |
| 2000 | 233 |
| 2001 | 249 |
| 2002 | 277 |
| 2003 | 306 |
| 2004 | 380 |
| 2005 | 454 |
| 2006 | 485 |
| 2007 | 495 |
| 2008 | 499 |
| 2009 | 603 |
| 2010 | 668 |
| 2011 | 639 |
| 2012 | 708 |
| 2013 | 767 |
| 2014 | 767 |
| 2015 | 720 |
| 2016 | 729 |
| 2017 | 722 |
| 2018 | 674 |
| 2019 | 661 |
| 2020 | 632 |
| 2021 | 694 |
| 2022 | 576 |
| 2023 | 584 |
| 2024 | 631 |
| 2025 | 347 |