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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 2 |
| 1974 | 13 |
| 1975 | 42 |
| 1976 | 31 |
| 1977 | 60 |
| 1978 | 75 |
| 1979 | 71 |
| 1980 | 70 |
| 1981 | 80 |
| 1982 | 75 |
| 1983 | 74 |
| 1984 | 116 |
| 1985 | 103 |
| 1986 | 115 |
| 1987 | 132 |
| 1988 | 103 |
| 1989 | 141 |
| 1990 | 215 |
| 1991 | 363 |
| 1992 | 401 |
| 1993 | 350 |
| 1994 | 322 |
| 1995 | 298 |
| 1996 | 184 |
| 1997 | 202 |
| 1998 | 155 |
| 1999 | 152 |
| 2000 | 182 |
| 2001 | 130 |
| 2002 | 156 |
| 2003 | 138 |
| 2004 | 167 |
| 2005 | 185 |
| 2006 | 175 |
| 2007 | 178 |
| 2008 | 166 |
| 2009 | 191 |
| 2010 | 185 |
| 2011 | 200 |
| 2012 | 196 |
| 2013 | 190 |
| 2014 | 175 |
| 2015 | 201 |
| 2016 | 182 |
| 2017 | 195 |
| 2018 | 195 |
| 2019 | 199 |
| 2020 | 125 |
| 2021 | 55 |
| 2022 | 9 |
| 2023 | 2 |
| 2024 | 1 |