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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 1 |
| 1967 | 10 |
| 1968 | 13 |
| 1969 | 12 |
| 1970 | 16 |
| 1971 | 14 |
| 1972 | 12 |
| 1973 | 25 |
| 1974 | 21 |
| 1975 | 12 |
| 1976 | 22 |
| 1977 | 24 |
| 1978 | 24 |
| 1979 | 18 |
| 1980 | 23 |
| 1981 | 34 |
| 1982 | 39 |
| 1983 | 37 |
| 1984 | 38 |
| 1985 | 55 |
| 1986 | 38 |
| 1987 | 38 |
| 1988 | 39 |
| 1989 | 34 |
| 1990 | 56 |
| 1991 | 44 |
| 1992 | 76 |
| 1993 | 94 |
| 1994 | 104 |
| 1995 | 69 |
| 1996 | 62 |
| 1997 | 76 |
| 1998 | 91 |
| 1999 | 115 |
| 2000 | 147 |
| 2001 | 128 |
| 2002 | 112 |
| 2003 | 124 |
| 2004 | 116 |
| 2005 | 149 |
| 2006 | 188 |
| 2007 | 204 |
| 2008 | 221 |
| 2009 | 264 |
| 2010 | 247 |
| 2011 | 286 |
| 2012 | 318 |
| 2013 | 349 |
| 2014 | 341 |
| 2015 | 255 |
| 2016 | 300 |
| 2017 | 260 |
| 2018 | 261 |
| 2019 | 238 |
| 2020 | 217 |
| 2021 | 168 |
| 2022 | 83 |
| 2023 | 72 |
| 2024 | 28 |