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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1964 | 1 |
| 1966 | 1 |
| 1967 | 1 |
| 1968 | 3 |
| 1969 | 3 |
| 1970 | 2 |
| 1971 | 4 |
| 1972 | 2 |
| 1973 | 4 |
| 1974 | 8 |
| 1975 | 8 |
| 1976 | 5 |
| 1977 | 4 |
| 1978 | 9 |
| 1979 | 8 |
| 1980 | 1 |
| 1981 | 5 |
| 1982 | 9 |
| 1983 | 7 |
| 1984 | 9 |
| 1985 | 12 |
| 1986 | 8 |
| 1987 | 13 |
| 1988 | 16 |
| 1989 | 18 |
| 1990 | 32 |
| 1991 | 29 |
| 1992 | 27 |
| 1993 | 38 |
| 1994 | 29 |
| 1995 | 30 |
| 1996 | 53 |
| 1997 | 57 |
| 1998 | 48 |
| 1999 | 86 |
| 2000 | 95 |
| 2001 | 96 |
| 2002 | 102 |
| 2003 | 138 |
| 2004 | 204 |
| 2005 | 238 |
| 2006 | 303 |
| 2007 | 267 |
| 2008 | 370 |
| 2009 | 419 |
| 2010 | 504 |
| 2011 | 521 |
| 2012 | 622 |
| 2013 | 629 |
| 2014 | 727 |
| 2015 | 767 |
| 2016 | 796 |
| 2017 | 826 |
| 2018 | 900 |
| 2019 | 945 |
| 2020 | 1113 |
| 2021 | 1318 |
| 2022 | 1189 |
| 2023 | 475 |