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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 7 |
| 1964 | 16 |
| 1965 | 41 |
| 1966 | 38 |
| 1967 | 43 |
| 1968 | 50 |
| 1969 | 83 |
| 1970 | 71 |
| 1971 | 99 |
| 1972 | 89 |
| 1973 | 105 |
| 1974 | 132 |
| 1975 | 92 |
| 1976 | 75 |
| 1977 | 88 |
| 1978 | 89 |
| 1979 | 81 |
| 1980 | 94 |
| 1981 | 122 |
| 1982 | 91 |
| 1983 | 124 |
| 1984 | 149 |
| 1985 | 133 |
| 1986 | 148 |
| 1987 | 176 |
| 1988 | 213 |
| 1989 | 199 |
| 1990 | 241 |
| 1991 | 268 |
| 1992 | 308 |
| 1993 | 325 |
| 1994 | 349 |
| 1995 | 486 |
| 1996 | 623 |
| 1997 | 654 |
| 1998 | 731 |
| 1999 | 689 |
| 2000 | 734 |
| 2001 | 701 |
| 2002 | 659 |
| 2003 | 737 |
| 2004 | 707 |
| 2005 | 771 |
| 2006 | 778 |
| 2007 | 736 |
| 2008 | 743 |
| 2009 | 695 |
| 2010 | 689 |
| 2011 | 692 |
| 2012 | 802 |
| 2013 | 795 |
| 2014 | 814 |
| 2015 | 811 |
| 2016 | 810 |
| 2017 | 755 |
| 2018 | 737 |
| 2019 | 669 |
| 2020 | 704 |
| 2021 | 612 |
| 2022 | 520 |
| 2023 | 450 |
| 2024 | 498 |
| 2025 | 431 |
| 2026 | 2 |