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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1965 | 4 |
| 1966 | 10 |
| 1967 | 34 |
| 1968 | 23 |
| 1969 | 25 |
| 1970 | 21 |
| 1971 | 24 |
| 1972 | 23 |
| 1973 | 32 |
| 1974 | 43 |
| 1975 | 43 |
| 1976 | 64 |
| 1977 | 46 |
| 1978 | 37 |
| 1979 | 34 |
| 1980 | 35 |
| 1981 | 33 |
| 1982 | 31 |
| 1983 | 30 |
| 1984 | 40 |
| 1985 | 44 |
| 1986 | 48 |
| 1987 | 68 |
| 1988 | 80 |
| 1989 | 121 |
| 1990 | 142 |
| 1991 | 169 |
| 1992 | 208 |
| 1993 | 194 |
| 1994 | 168 |
| 1995 | 193 |
| 1996 | 200 |
| 1997 | 210 |
| 1998 | 239 |
| 1999 | 221 |
| 2000 | 259 |
| 2001 | 280 |
| 2002 | 280 |
| 2003 | 323 |
| 2004 | 312 |
| 2005 | 328 |
| 2006 | 344 |
| 2007 | 347 |
| 2008 | 422 |
| 2009 | 458 |
| 2010 | 449 |
| 2011 | 518 |
| 2012 | 560 |
| 2013 | 625 |
| 2014 | 639 |
| 2015 | 645 |
| 2016 | 614 |
| 2017 | 692 |
| 2018 | 686 |
| 2019 | 738 |
| 2020 | 762 |
| 2021 | 684 |
| 2022 | 1027 |
| 2023 | 953 |
| 2024 | 400 |