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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 3 |
| 1964 | 6 |
| 1965 | 4 |
| 1966 | 4 |
| 1967 | 2 |
| 1968 | 2 |
| 1969 | 6 |
| 1970 | 4 |
| 1971 | 3 |
| 1972 | 2 |
| 1973 | 5 |
| 1974 | 6 |
| 1975 | 4 |
| 1976 | 6 |
| 1977 | 3 |
| 1978 | 6 |
| 1979 | 5 |
| 1980 | 8 |
| 1981 | 10 |
| 1982 | 16 |
| 1983 | 12 |
| 1984 | 26 |
| 1985 | 27 |
| 1986 | 33 |
| 1987 | 20 |
| 1988 | 32 |
| 1989 | 24 |
| 1990 | 58 |
| 1991 | 50 |
| 1992 | 61 |
| 1993 | 57 |
| 1994 | 66 |
| 1995 | 67 |
| 1996 | 77 |
| 1997 | 98 |
| 1998 | 99 |
| 1999 | 157 |
| 2000 | 183 |
| 2001 | 176 |
| 2002 | 237 |
| 2003 | 292 |
| 2004 | 343 |
| 2005 | 445 |
| 2006 | 516 |
| 2007 | 587 |
| 2008 | 734 |
| 2009 | 740 |
| 2010 | 859 |
| 2011 | 993 |
| 2012 | 1269 |
| 2013 | 1418 |
| 2014 | 1533 |
| 2015 | 1665 |
| 2016 | 1772 |
| 2017 | 1835 |
| 2018 | 2145 |
| 2019 | 2148 |
| 2020 | 2515 |
| 2021 | 2815 |
| 2022 | 2880 |
| 2023 | 31 |