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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1964 | 2 |
| 1965 | 15 |
| 1966 | 40 |
| 1967 | 70 |
| 1968 | 105 |
| 1969 | 106 |
| 1970 | 94 |
| 1971 | 109 |
| 1972 | 86 |
| 1973 | 106 |
| 1974 | 127 |
| 1975 | 105 |
| 1976 | 88 |
| 1977 | 75 |
| 1978 | 88 |
| 1979 | 93 |
| 1980 | 85 |
| 1981 | 68 |
| 1982 | 91 |
| 1983 | 74 |
| 1984 | 83 |
| 1985 | 101 |
| 1986 | 108 |
| 1987 | 113 |
| 1988 | 130 |
| 1989 | 117 |
| 1990 | 231 |
| 1991 | 118 |
| 1992 | 127 |
| 1993 | 112 |
| 1994 | 114 |
| 1995 | 110 |
| 1996 | 101 |
| 1997 | 149 |
| 1998 | 123 |
| 1999 | 118 |
| 2000 | 144 |
| 2001 | 162 |
| 2002 | 153 |
| 2003 | 231 |
| 2004 | 224 |
| 2005 | 190 |
| 2006 | 237 |
| 2007 | 281 |
| 2008 | 302 |
| 2009 | 255 |
| 2010 | 262 |
| 2011 | 299 |
| 2012 | 298 |
| 2013 | 292 |
| 2014 | 258 |
| 2015 | 291 |
| 2016 | 278 |
| 2017 | 244 |
| 2018 | 240 |
| 2019 | 204 |
| 2020 | 222 |
| 2021 | 167 |
| 2022 | 153 |
| 2023 | 128 |
| 2024 | 41 |