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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 13 |
| 1961 | 37 |
| 1962 | 50 |
| 1963 | 35 |
| 1964 | 49 |
| 1965 | 63 |
| 1966 | 62 |
| 1967 | 65 |
| 1968 | 99 |
| 1969 | 104 |
| 1970 | 83 |
| 1971 | 89 |
| 1972 | 120 |
| 1973 | 102 |
| 1974 | 73 |
| 1975 | 100 |
| 1976 | 122 |
| 1977 | 114 |
| 1978 | 182 |
| 1979 | 156 |
| 1980 | 240 |
| 1981 | 187 |
| 1982 | 264 |
| 1983 | 169 |
| 1984 | 266 |
| 1985 | 219 |
| 1986 | 304 |
| 1987 | 232 |
| 1988 | 236 |
| 1989 | 252 |
| 1990 | 281 |
| 1991 | 287 |
| 1992 | 396 |
| 1993 | 503 |
| 1994 | 512 |
| 1995 | 612 |
| 1996 | 640 |
| 1997 | 587 |
| 1998 | 630 |
| 1999 | 615 |
| 2000 | 595 |
| 2001 | 583 |
| 2002 | 623 |
| 2003 | 752 |
| 2004 | 957 |
| 2005 | 1041 |
| 2006 | 1139 |
| 2007 | 1144 |
| 2008 | 1060 |
| 2009 | 839 |
| 2010 | 832 |
| 2011 | 710 |
| 2012 | 625 |
| 2013 | 638 |
| 2014 | 654 |
| 2015 | 610 |
| 2016 | 591 |
| 2017 | 570 |
| 2018 | 584 |
| 2019 | 546 |
| 2020 | 577 |
| 2021 | 556 |
| 2022 | 518 |
| 2023 | 453 |
| 2024 | 175 |