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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 2 |
| 1972 | 14 |
| 1973 | 44 |
| 1974 | 42 |
| 1975 | 51 |
| 1976 | 39 |
| 1977 | 38 |
| 1978 | 36 |
| 1979 | 46 |
| 1980 | 82 |
| 1981 | 92 |
| 1982 | 85 |
| 1983 | 93 |
| 1984 | 96 |
| 1985 | 171 |
| 1986 | 180 |
| 1987 | 180 |
| 1988 | 188 |
| 1989 | 185 |
| 1990 | 179 |
| 1991 | 178 |
| 1992 | 244 |
| 1993 | 172 |
| 1994 | 234 |
| 1995 | 229 |
| 1996 | 230 |
| 1997 | 218 |
| 1998 | 191 |
| 1999 | 197 |
| 2000 | 217 |
| 2001 | 234 |
| 2002 | 232 |
| 2003 | 254 |
| 2004 | 308 |
| 2005 | 254 |
| 2006 | 293 |
| 2007 | 282 |
| 2008 | 308 |
| 2009 | 364 |
| 2010 | 362 |
| 2011 | 356 |
| 2012 | 360 |
| 2013 | 361 |
| 2014 | 391 |
| 2015 | 345 |
| 2016 | 383 |
| 2017 | 428 |
| 2018 | 467 |
| 2019 | 469 |
| 2020 | 350 |
| 2021 | 243 |
| 2022 | 103 |
| 2023 | 85 |
| 2024 | 19 |