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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 2 |
| 1968 | 1 |
| 1971 | 1 |
| 1973 | 1 |
| 1974 | 20 |
| 1975 | 38 |
| 1976 | 50 |
| 1977 | 38 |
| 1978 | 39 |
| 1979 | 37 |
| 1980 | 46 |
| 1981 | 39 |
| 1982 | 65 |
| 1983 | 45 |
| 1984 | 74 |
| 1985 | 81 |
| 1986 | 68 |
| 1987 | 79 |
| 1988 | 128 |
| 1989 | 155 |
| 1990 | 244 |
| 1991 | 212 |
| 1992 | 181 |
| 1993 | 147 |
| 1994 | 174 |
| 1995 | 115 |
| 1996 | 105 |
| 1997 | 151 |
| 1998 | 202 |
| 1999 | 177 |
| 2000 | 185 |
| 2001 | 151 |
| 2002 | 214 |
| 2003 | 248 |
| 2004 | 293 |
| 2005 | 230 |
| 2006 | 260 |
| 2007 | 301 |
| 2008 | 320 |
| 2009 | 389 |
| 2010 | 350 |
| 2011 | 321 |
| 2012 | 228 |
| 2013 | 140 |
| 2014 | 127 |
| 2015 | 116 |
| 2016 | 81 |
| 2017 | 75 |
| 2018 | 111 |
| 2019 | 113 |
| 2020 | 99 |
| 2021 | 71 |
| 2022 | 12 |
| 2023 | 10 |
| 2024 | 9 |