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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1966 | 7 |
| 1967 | 45 |
| 1968 | 105 |
| 1969 | 94 |
| 1970 | 152 |
| 1971 | 172 |
| 1972 | 134 |
| 1973 | 155 |
| 1974 | 149 |
| 1975 | 132 |
| 1976 | 95 |
| 1977 | 99 |
| 1978 | 120 |
| 1979 | 97 |
| 1980 | 100 |
| 1981 | 92 |
| 1982 | 111 |
| 1983 | 92 |
| 1984 | 95 |
| 1985 | 132 |
| 1986 | 111 |
| 1987 | 131 |
| 1988 | 204 |
| 1989 | 200 |
| 1990 | 237 |
| 1991 | 341 |
| 1992 | 388 |
| 1993 | 296 |
| 1994 | 260 |
| 1995 | 316 |
| 1996 | 324 |
| 1997 | 398 |
| 1998 | 419 |
| 1999 | 460 |
| 2000 | 479 |
| 2001 | 589 |
| 2002 | 587 |
| 2003 | 571 |
| 2004 | 584 |
| 2005 | 515 |
| 2006 | 597 |
| 2007 | 652 |
| 2008 | 685 |
| 2009 | 676 |
| 2010 | 784 |
| 2011 | 789 |
| 2012 | 805 |
| 2013 | 936 |
| 2014 | 951 |
| 2015 | 911 |
| 2016 | 906 |
| 2017 | 911 |
| 2018 | 1000 |
| 2019 | 1073 |
| 2020 | 989 |
| 2021 | 657 |
| 2022 | 96 |
| 2023 | 36 |
| 2024 | 404 |
| 2025 | 390 |