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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 20 |
| 1973 | 30 |
| 1974 | 65 |
| 1975 | 56 |
| 1976 | 48 |
| 1977 | 51 |
| 1978 | 101 |
| 1979 | 101 |
| 1980 | 110 |
| 1981 | 77 |
| 1982 | 73 |
| 1983 | 141 |
| 1984 | 49 |
| 1985 | 92 |
| 1986 | 133 |
| 1987 | 148 |
| 1988 | 127 |
| 1989 | 114 |
| 1990 | 220 |
| 1991 | 169 |
| 1992 | 160 |
| 1993 | 164 |
| 1994 | 245 |
| 1995 | 200 |
| 1996 | 155 |
| 1997 | 175 |
| 1998 | 211 |
| 1999 | 151 |
| 2000 | 202 |
| 2001 | 153 |
| 2002 | 170 |
| 2003 | 191 |
| 2004 | 214 |
| 2005 | 224 |
| 2006 | 344 |
| 2007 | 293 |
| 2008 | 239 |
| 2009 | 252 |
| 2010 | 225 |
| 2011 | 259 |
| 2012 | 272 |
| 2013 | 276 |
| 2014 | 269 |
| 2015 | 255 |
| 2016 | 213 |
| 2017 | 229 |
| 2018 | 190 |
| 2019 | 188 |
| 2020 | 180 |
| 2021 | 188 |
| 2022 | 156 |
| 2023 | 166 |
| 2024 | 70 |