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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1977 | 3 |
| 1978 | 2 |
| 1979 | 2 |
| 1980 | 1 |
| 1981 | 5 |
| 1982 | 9 |
| 1983 | 7 |
| 1984 | 8 |
| 1985 | 14 |
| 1986 | 20 |
| 1987 | 22 |
| 1988 | 23 |
| 1989 | 36 |
| 1990 | 38 |
| 1991 | 46 |
| 1992 | 53 |
| 1993 | 59 |
| 1994 | 74 |
| 1995 | 75 |
| 1996 | 79 |
| 1997 | 100 |
| 1998 | 109 |
| 1999 | 109 |
| 2000 | 127 |
| 2001 | 129 |
| 2002 | 144 |
| 2003 | 146 |
| 2004 | 171 |
| 2005 | 187 |
| 2006 | 173 |
| 2007 | 175 |
| 2008 | 178 |
| 2009 | 171 |
| 2010 | 198 |
| 2011 | 184 |
| 2012 | 191 |
| 2013 | 209 |
| 2014 | 164 |
| 2015 | 189 |
| 2016 | 179 |
| 2017 | 167 |
| 2018 | 163 |
| 2019 | 182 |
| 2020 | 139 |
| 2021 | 177 |
| 2022 | 111 |
| 2023 | 88 |
| 2024 | 31 |