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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 3 |
| 1965 | 1 |
| 1966 | 4 |
| 1967 | 5 |
| 1968 | 7 |
| 1969 | 13 |
| 1970 | 21 |
| 1971 | 38 |
| 1972 | 43 |
| 1973 | 32 |
| 1974 | 38 |
| 1975 | 29 |
| 1976 | 47 |
| 1977 | 36 |
| 1978 | 27 |
| 1979 | 22 |
| 1980 | 35 |
| 1981 | 39 |
| 1982 | 38 |
| 1983 | 50 |
| 1984 | 37 |
| 1985 | 60 |
| 1986 | 54 |
| 1987 | 48 |
| 1988 | 48 |
| 1989 | 59 |
| 1990 | 64 |
| 1991 | 58 |
| 1992 | 61 |
| 1993 | 60 |
| 1994 | 45 |
| 1995 | 67 |
| 1996 | 71 |
| 1997 | 78 |
| 1998 | 86 |
| 1999 | 90 |
| 2000 | 104 |
| 2001 | 106 |
| 2002 | 132 |
| 2003 | 118 |
| 2004 | 108 |
| 2005 | 131 |
| 2006 | 137 |
| 2007 | 133 |
| 2008 | 168 |
| 2009 | 173 |
| 2010 | 169 |
| 2011 | 177 |
| 2012 | 188 |
| 2013 | 191 |
| 2014 | 154 |
| 2015 | 182 |
| 2016 | 133 |
| 2017 | 139 |
| 2018 | 127 |
| 2019 | 149 |
| 2020 | 116 |
| 2021 | 86 |
| 2022 | 9 |
| 2023 | 2 |
| 2024 | 0 |