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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1966 | 2 |
| 1967 | 5 |
| 1968 | 9 |
| 1969 | 7 |
| 1970 | 5 |
| 1971 | 5 |
| 1972 | 10 |
| 1973 | 10 |
| 1974 | 17 |
| 1975 | 12 |
| 1976 | 14 |
| 1977 | 16 |
| 1978 | 14 |
| 1979 | 15 |
| 1980 | 13 |
| 1981 | 15 |
| 1982 | 18 |
| 1983 | 39 |
| 1984 | 35 |
| 1985 | 49 |
| 1986 | 54 |
| 1987 | 75 |
| 1988 | 78 |
| 1989 | 134 |
| 1990 | 156 |
| 1991 | 155 |
| 1992 | 199 |
| 1993 | 219 |
| 1994 | 245 |
| 1995 | 284 |
| 1996 | 323 |
| 1997 | 317 |
| 1998 | 376 |
| 1999 | 382 |
| 2000 | 422 |
| 2001 | 507 |
| 2002 | 520 |
| 2003 | 560 |
| 2004 | 660 |
| 2005 | 818 |
| 2006 | 835 |
| 2007 | 912 |
| 2008 | 917 |
| 2009 | 1091 |
| 2010 | 1378 |
| 2011 | 1653 |
| 2012 | 1854 |
| 2013 | 2283 |
| 2014 | 2659 |
| 2015 | 2986 |
| 2016 | 2837 |
| 2017 | 2931 |
| 2018 | 3110 |
| 2019 | 3291 |
| 2020 | 3697 |
| 2021 | 3805 |
| 2022 | 3601 |
| 2023 | 3399 |
| 2024 | 2073 |