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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 25 |
| 1972 | 21 |
| 1973 | 52 |
| 1974 | 79 |
| 1975 | 107 |
| 1976 | 67 |
| 1977 | 157 |
| 1978 | 136 |
| 1979 | 137 |
| 1980 | 160 |
| 1981 | 195 |
| 1982 | 236 |
| 1983 | 299 |
| 1984 | 258 |
| 1985 | 269 |
| 1986 | 299 |
| 1987 | 278 |
| 1988 | 283 |
| 1989 | 255 |
| 1990 | 320 |
| 1991 | 274 |
| 1992 | 270 |
| 1993 | 253 |
| 1994 | 175 |
| 1995 | 153 |
| 1996 | 202 |
| 1997 | 171 |
| 1998 | 175 |
| 1999 | 137 |
| 2000 | 154 |
| 2001 | 140 |
| 2002 | 135 |
| 2003 | 172 |
| 2004 | 154 |
| 2005 | 182 |
| 2006 | 173 |
| 2007 | 200 |
| 2008 | 216 |
| 2009 | 210 |
| 2010 | 235 |
| 2011 | 293 |
| 2012 | 363 |
| 2013 | 316 |
| 2014 | 215 |
| 2015 | 232 |
| 2016 | 234 |
| 2017 | 270 |
| 2018 | 266 |
| 2019 | 254 |
| 2020 | 293 |
| 2021 | 281 |
| 2022 | 248 |
| 2023 | 197 |
| 2024 | 111 |