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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 5 |
| 1960 | 11 |
| 1961 | 13 |
| 1962 | 6 |
| 1963 | 1 |
| 1964 | 5 |
| 1965 | 76 |
| 1966 | 139 |
| 1967 | 150 |
| 1968 | 177 |
| 1969 | 171 |
| 1970 | 168 |
| 1971 | 163 |
| 1972 | 140 |
| 1973 | 152 |
| 1974 | 155 |
| 1975 | 156 |
| 1976 | 145 |
| 1977 | 112 |
| 1978 | 110 |
| 1979 | 116 |
| 1980 | 165 |
| 1981 | 210 |
| 1982 | 256 |
| 1983 | 282 |
| 1984 | 343 |
| 1985 | 283 |
| 1986 | 355 |
| 1987 | 318 |
| 1988 | 373 |
| 1989 | 387 |
| 1990 | 462 |
| 1991 | 548 |
| 1992 | 741 |
| 1993 | 860 |
| 1994 | 973 |
| 1995 | 1507 |
| 1996 | 2005 |
| 1997 | 2288 |
| 1998 | 2426 |
| 1999 | 2859 |
| 2000 | 3118 |
| 2001 | 3416 |
| 2002 | 3705 |
| 2003 | 4021 |
| 2004 | 4188 |
| 2005 | 4521 |
| 2006 | 4845 |
| 2007 | 5198 |
| 2008 | 5231 |
| 2009 | 5908 |
| 2010 | 6505 |
| 2011 | 7206 |
| 2012 | 7766 |
| 2013 | 7924 |
| 2014 | 8057 |
| 2015 | 8340 |
| 2016 | 8479 |
| 2017 | 8879 |
| 2018 | 9296 |
| 2019 | 9331 |
| 2020 | 9153 |
| 2021 | 8526 |
| 2022 | 7314 |
| 2023 | 6385 |
| 2024 | 2356 |