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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 10 |
| 1963 | 2 |
| 1964 | 3 |
| 1965 | 5 |
| 1967 | 3 |
| 1968 | 2 |
| 1969 | 3 |
| 1970 | 7 |
| 1971 | 3 |
| 1972 | 6 |
| 1973 | 6 |
| 1974 | 8 |
| 1975 | 5 |
| 1976 | 7 |
| 1977 | 5 |
| 1978 | 2 |
| 1979 | 10 |
| 1980 | 10 |
| 1981 | 7 |
| 1982 | 10 |
| 1983 | 10 |
| 1984 | 8 |
| 1985 | 10 |
| 1986 | 18 |
| 1987 | 13 |
| 1988 | 14 |
| 1989 | 23 |
| 1990 | 24 |
| 1991 | 31 |
| 1992 | 34 |
| 1993 | 38 |
| 1994 | 50 |
| 1995 | 72 |
| 1996 | 90 |
| 1997 | 117 |
| 1998 | 131 |
| 1999 | 117 |
| 2000 | 168 |
| 2001 | 192 |
| 2002 | 222 |
| 2003 | 293 |
| 2004 | 335 |
| 2005 | 421 |
| 2006 | 467 |
| 2007 | 620 |
| 2008 | 626 |
| 2009 | 695 |
| 2010 | 864 |
| 2011 | 996 |
| 2012 | 1020 |
| 2013 | 1079 |
| 2014 | 1128 |
| 2015 | 1201 |
| 2016 | 1214 |
| 2017 | 1250 |
| 2018 | 1311 |
| 2019 | 1336 |
| 2020 | 1546 |
| 2021 | 1686 |
| 2022 | 1568 |
| 2023 | 676 |