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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 2 |
| 1965 | 11 |
| 1966 | 42 |
| 1967 | 36 |
| 1968 | 48 |
| 1969 | 57 |
| 1970 | 43 |
| 1971 | 72 |
| 1972 | 91 |
| 1973 | 120 |
| 1974 | 209 |
| 1975 | 216 |
| 1976 | 196 |
| 1977 | 233 |
| 1978 | 295 |
| 1979 | 337 |
| 1980 | 401 |
| 1981 | 367 |
| 1982 | 523 |
| 1983 | 491 |
| 1984 | 558 |
| 1985 | 684 |
| 1986 | 672 |
| 1987 | 720 |
| 1988 | 561 |
| 1989 | 571 |
| 1990 | 692 |
| 1991 | 735 |
| 1992 | 761 |
| 1993 | 730 |
| 1994 | 795 |
| 1995 | 820 |
| 1996 | 891 |
| 1997 | 1092 |
| 1998 | 1151 |
| 1999 | 1288 |
| 2000 | 1430 |
| 2001 | 1387 |
| 2002 | 1522 |
| 2003 | 1618 |
| 2004 | 1744 |
| 2005 | 2056 |
| 2006 | 1988 |
| 2007 | 2104 |
| 2008 | 2204 |
| 2009 | 2223 |
| 2010 | 2454 |
| 2011 | 2630 |
| 2012 | 2524 |
| 2013 | 2605 |
| 2014 | 2497 |
| 2015 | 2294 |
| 2016 | 2193 |
| 2017 | 1839 |
| 2018 | 1728 |
| 2019 | 1473 |
| 2020 | 1046 |
| 2021 | 813 |
| 2022 | 112 |
| 2023 | 19 |
| 2024 | 69 |