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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 24 |
| 1956 | 27 |
| 1957 | 29 |
| 1960 | 16 |
| 1961 | 25 |
| 1981 | 23 |
| 1982 | 27 |
| 1983 | 38 |
| 1984 | 47 |
| 1985 | 48 |
| 1986 | 44 |
| 1987 | 41 |
| 1988 | 35 |
| 1989 | 46 |
| 1990 | 72 |
| 1991 | 5 |
| 1992 | 64 |
| 1993 | 54 |
| 1994 | 63 |
| 1995 | 48 |
| 1996 | 49 |
| 1997 | 57 |
| 1998 | 57 |
| 1999 | 79 |
| 2000 | 66 |
| 2001 | 59 |
| 2002 | 59 |
| 2003 | 69 |
| 2004 | 65 |
| 2005 | 54 |
| 2006 | 71 |
| 2007 | 45 |
| 2008 | 57 |
| 2009 | 77 |
| 2010 | 49 |
| 2011 | 49 |
| 2012 | 48 |
| 2013 | 53 |
| 2014 | 47 |
| 2015 | 50 |
| 2016 | 53 |
| 2017 | 54 |
| 2018 | 52 |
| 2019 | 55 |
| 2020 | 47 |
| 2021 | 41 |
| 2022 | 36 |
| 2023 | 49 |