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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 2 |
| 1959 | 1 |
| 1960 | 3 |
| 1961 | 1 |
| 1962 | 1 |
| 1965 | 1 |
| 1971 | 1 |
| 1977 | 9 |
| 1978 | 48 |
| 1979 | 66 |
| 1980 | 55 |
| 1981 | 27 |
| 1982 | 30 |
| 1983 | 60 |
| 1984 | 35 |
| 1985 | 32 |
| 1986 | 36 |
| 1987 | 59 |
| 1988 | 63 |
| 1989 | 75 |
| 1990 | 65 |
| 1991 | 91 |
| 1992 | 70 |
| 1993 | 72 |
| 1994 | 91 |
| 1995 | 83 |
| 1996 | 66 |
| 1997 | 83 |
| 1998 | 92 |
| 1999 | 77 |
| 2000 | 110 |
| 2001 | 87 |
| 2002 | 102 |
| 2003 | 63 |
| 2004 | 56 |
| 2005 | 67 |
| 2006 | 126 |
| 2007 | 86 |
| 2008 | 109 |
| 2009 | 111 |
| 2010 | 135 |
| 2011 | 177 |
| 2012 | 217 |
| 2013 | 226 |
| 2014 | 264 |
| 2015 | 265 |
| 2016 | 276 |
| 2017 | 138 |
| 2018 | 51 |
| 2019 | 37 |
| 2020 | 36 |
| 2021 | 21 |
| 2022 | 4 |
| 2024 | 0 |