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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 4 |
| 1967 | 2 |
| 1968 | 2 |
| 1969 | 1 |
| 1971 | 2 |
| 1972 | 2 |
| 1973 | 18 |
| 1974 | 8 |
| 1975 | 50 |
| 1976 | 50 |
| 1977 | 61 |
| 1978 | 54 |
| 1979 | 84 |
| 1980 | 99 |
| 1981 | 87 |
| 1982 | 86 |
| 1983 | 101 |
| 1984 | 93 |
| 1985 | 75 |
| 1986 | 110 |
| 1987 | 108 |
| 1988 | 123 |
| 1989 | 131 |
| 1990 | 135 |
| 1991 | 185 |
| 1992 | 181 |
| 1993 | 116 |
| 1994 | 143 |
| 1995 | 120 |
| 1996 | 144 |
| 1997 | 162 |
| 1998 | 204 |
| 1999 | 206 |
| 2000 | 207 |
| 2001 | 191 |
| 2002 | 177 |
| 2003 | 146 |
| 2004 | 178 |
| 2005 | 147 |
| 2006 | 147 |
| 2007 | 166 |
| 2008 | 209 |
| 2009 | 156 |
| 2010 | 163 |
| 2011 | 207 |
| 2012 | 220 |
| 2013 | 284 |
| 2014 | 201 |
| 2015 | 209 |
| 2016 | 213 |
| 2017 | 224 |
| 2018 | 282 |
| 2019 | 271 |
| 2020 | 177 |
| 2021 | 128 |
| 2022 | 77 |
| 2023 | 74 |
| 2024 | 41 |