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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 2 |
| 1956 | 1 |
| 1958 | 1 |
| 1959 | 1 |
| 1966 | 1 |
| 1968 | 1 |
| 1970 | 1 |
| 1984 | 1 |
| 1986 | 1 |
| 1987 | 3 |
| 1988 | 2 |
| 1989 | 3 |
| 1990 | 2 |
| 1991 | 2 |
| 1992 | 7 |
| 1993 | 2 |
| 1994 | 3 |
| 1995 | 8 |
| 1996 | 19 |
| 1997 | 21 |
| 1998 | 21 |
| 1999 | 26 |
| 2000 | 33 |
| 2001 | 52 |
| 2002 | 54 |
| 2003 | 55 |
| 2004 | 42 |
| 2005 | 70 |
| 2006 | 70 |
| 2007 | 50 |
| 2008 | 58 |
| 2009 | 62 |
| 2010 | 79 |
| 2011 | 82 |
| 2012 | 102 |
| 2013 | 95 |
| 2014 | 88 |
| 2015 | 116 |
| 2016 | 106 |
| 2017 | 86 |
| 2018 | 89 |
| 2019 | 111 |
| 2020 | 133 |
| 2021 | 140 |
| 2022 | 135 |
| 2023 | 90 |