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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 1 |
| 1967 | 2 |
| 1968 | 9 |
| 1969 | 10 |
| 1970 | 30 |
| 1971 | 39 |
| 1972 | 50 |
| 1973 | 52 |
| 1974 | 46 |
| 1975 | 76 |
| 1976 | 112 |
| 1977 | 118 |
| 1978 | 127 |
| 1979 | 130 |
| 1980 | 155 |
| 1981 | 118 |
| 1982 | 109 |
| 1983 | 113 |
| 1984 | 139 |
| 1985 | 150 |
| 1986 | 188 |
| 1987 | 120 |
| 1988 | 149 |
| 1989 | 171 |
| 1990 | 181 |
| 1991 | 112 |
| 1992 | 104 |
| 1993 | 111 |
| 1994 | 99 |
| 1995 | 109 |
| 1996 | 86 |
| 1997 | 115 |
| 1998 | 102 |
| 1999 | 111 |
| 2000 | 118 |
| 2001 | 147 |
| 2002 | 126 |
| 2003 | 169 |
| 2004 | 156 |
| 2005 | 189 |
| 2006 | 248 |
| 2007 | 249 |
| 2008 | 364 |
| 2009 | 269 |
| 2010 | 285 |
| 2011 | 317 |
| 2012 | 346 |
| 2013 | 317 |
| 2014 | 288 |
| 2015 | 277 |
| 2016 | 223 |
| 2017 | 163 |
| 2018 | 146 |
| 2019 | 138 |
| 2020 | 130 |
| 2021 | 75 |
| 2022 | 9 |
| 2023 | 3 |
| 2024 | 54 |