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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1968 | 3 |
| 1970 | 3 |
| 1972 | 4 |
| 1973 | 2 |
| 1974 | 9 |
| 1975 | 8 |
| 1976 | 5 |
| 1977 | 9 |
| 1978 | 8 |
| 1979 | 10 |
| 1980 | 5 |
| 1981 | 8 |
| 1982 | 9 |
| 1983 | 14 |
| 1984 | 29 |
| 1985 | 15 |
| 1986 | 13 |
| 1987 | 19 |
| 1988 | 32 |
| 1989 | 29 |
| 1990 | 40 |
| 1991 | 68 |
| 1992 | 66 |
| 1993 | 60 |
| 1994 | 74 |
| 1995 | 73 |
| 1996 | 67 |
| 1997 | 80 |
| 1998 | 87 |
| 1999 | 129 |
| 2000 | 120 |
| 2001 | 156 |
| 2002 | 168 |
| 2003 | 201 |
| 2004 | 189 |
| 2005 | 276 |
| 2006 | 285 |
| 2007 | 324 |
| 2008 | 352 |
| 2009 | 414 |
| 2010 | 484 |
| 2011 | 617 |
| 2012 | 649 |
| 2013 | 668 |
| 2014 | 763 |
| 2015 | 862 |
| 2016 | 866 |
| 2017 | 921 |
| 2018 | 976 |
| 2019 | 1205 |
| 2020 | 1299 |
| 2021 | 1596 |
| 2022 | 1683 |
| 2023 | 168 |