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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 4 |
| 1960 | 1 |
| 1961 | 1 |
| 1962 | 3 |
| 1963 | 3 |
| 1964 | 6 |
| 1965 | 7 |
| 1966 | 3 |
| 1967 | 4 |
| 1968 | 3 |
| 1969 | 1 |
| 1970 | 3 |
| 1971 | 6 |
| 1972 | 7 |
| 1973 | 14 |
| 1974 | 13 |
| 1975 | 15 |
| 1976 | 13 |
| 1977 | 6 |
| 1978 | 10 |
| 1979 | 20 |
| 1980 | 25 |
| 1981 | 38 |
| 1982 | 24 |
| 1983 | 24 |
| 1984 | 31 |
| 1985 | 48 |
| 1986 | 64 |
| 1987 | 74 |
| 1988 | 85 |
| 1989 | 121 |
| 1990 | 116 |
| 1991 | 129 |
| 1992 | 150 |
| 1993 | 193 |
| 1994 | 217 |
| 1995 | 256 |
| 1996 | 285 |
| 1997 | 317 |
| 1998 | 348 |
| 1999 | 376 |
| 2000 | 492 |
| 2001 | 570 |
| 2002 | 788 |
| 2003 | 948 |
| 2004 | 1125 |
| 2005 | 1466 |
| 2006 | 1708 |
| 2007 | 1959 |
| 2008 | 2470 |
| 2009 | 2770 |
| 2010 | 3412 |
| 2011 | 3960 |
| 2012 | 4723 |
| 2013 | 5633 |
| 2014 | 6588 |
| 2015 | 7393 |
| 2016 | 7576 |
| 2017 | 8325 |
| 2018 | 9280 |
| 2019 | 10627 |
| 2020 | 12593 |
| 2021 | 14375 |
| 2022 | 15443 |
| 2023 | 222 |