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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1960 | 1 |
| 1963 | 3 |
| 1965 | 1 |
| 1966 | 3 |
| 1969 | 1 |
| 1971 | 3 |
| 1972 | 3 |
| 1973 | 2 |
| 1974 | 3 |
| 1975 | 3 |
| 1976 | 3 |
| 1977 | 3 |
| 1978 | 1 |
| 1979 | 8 |
| 1980 | 8 |
| 1981 | 7 |
| 1982 | 11 |
| 1983 | 8 |
| 1984 | 15 |
| 1985 | 12 |
| 1986 | 13 |
| 1987 | 8 |
| 1988 | 17 |
| 1989 | 18 |
| 1990 | 28 |
| 1991 | 18 |
| 1992 | 20 |
| 1993 | 30 |
| 1994 | 47 |
| 1995 | 54 |
| 1996 | 52 |
| 1997 | 97 |
| 1998 | 94 |
| 1999 | 101 |
| 2000 | 90 |
| 2001 | 88 |
| 2002 | 140 |
| 2003 | 148 |
| 2004 | 159 |
| 2005 | 187 |
| 2006 | 198 |
| 2007 | 234 |
| 2008 | 272 |
| 2009 | 330 |
| 2010 | 398 |
| 2011 | 478 |
| 2012 | 472 |
| 2013 | 579 |
| 2014 | 638 |
| 2015 | 765 |
| 2016 | 821 |
| 2017 | 859 |
| 2018 | 1044 |
| 2019 | 1173 |
| 2020 | 1299 |
| 2021 | 1554 |
| 2022 | 1838 |
| 2023 | 548 |