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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 2 |
| 1963 | 4 |
| 1964 | 1 |
| 1965 | 1 |
| 1967 | 2 |
| 1968 | 1 |
| 1974 | 2 |
| 1975 | 67 |
| 1976 | 61 |
| 1977 | 68 |
| 1978 | 67 |
| 1979 | 80 |
| 1980 | 80 |
| 1981 | 86 |
| 1982 | 106 |
| 1983 | 79 |
| 1984 | 123 |
| 1985 | 125 |
| 1986 | 115 |
| 1987 | 78 |
| 1988 | 115 |
| 1989 | 112 |
| 1990 | 138 |
| 1991 | 174 |
| 1992 | 171 |
| 1993 | 188 |
| 1994 | 192 |
| 1995 | 183 |
| 1996 | 219 |
| 1997 | 211 |
| 1998 | 223 |
| 1999 | 231 |
| 2000 | 190 |
| 2001 | 211 |
| 2002 | 166 |
| 2003 | 165 |
| 2004 | 147 |
| 2005 | 160 |
| 2006 | 176 |
| 2007 | 163 |
| 2008 | 127 |
| 2009 | 136 |
| 2010 | 98 |
| 2011 | 115 |
| 2012 | 101 |
| 2013 | 98 |
| 2014 | 99 |
| 2015 | 75 |
| 2016 | 90 |
| 2017 | 86 |
| 2018 | 77 |
| 2019 | 71 |
| 2020 | 60 |
| 2021 | 29 |
| 2022 | 22 |
| 2023 | 15 |
| 2024 | 12 |