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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 1 |
| 1967 | 1 |
| 1968 | 1 |
| 1971 | 1 |
| 1972 | 1 |
| 1976 | 1 |
| 1978 | 1 |
| 1980 | 4 |
| 1981 | 3 |
| 1985 | 1 |
| 1986 | 6 |
| 1987 | 66 |
| 1988 | 213 |
| 1989 | 222 |
| 1990 | 206 |
| 1991 | 192 |
| 1992 | 202 |
| 1993 | 193 |
| 1994 | 187 |
| 1995 | 182 |
| 1996 | 156 |
| 1997 | 165 |
| 1998 | 159 |
| 1999 | 145 |
| 2000 | 151 |
| 2001 | 165 |
| 2002 | 153 |
| 2003 | 117 |
| 2004 | 81 |
| 2005 | 87 |
| 2006 | 83 |
| 2007 | 53 |
| 2008 | 61 |
| 2009 | 43 |
| 2010 | 39 |
| 2011 | 33 |
| 2012 | 41 |
| 2013 | 40 |
| 2014 | 23 |
| 2015 | 31 |
| 2016 | 26 |
| 2017 | 21 |
| 2018 | 12 |
| 2019 | 13 |
| 2020 | 10 |
| 2021 | 7 |
| 2022 | 2 |
| 2024 | 0 |