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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 2 |
| 1973 | 3 |
| 1974 | 4 |
| 1975 | 3 |
| 1976 | 6 |
| 1977 | 1 |
| 1978 | 1 |
| 1979 | 3 |
| 1980 | 8 |
| 1981 | 13 |
| 1982 | 15 |
| 1983 | 33 |
| 1984 | 34 |
| 1985 | 51 |
| 1986 | 28 |
| 1987 | 42 |
| 1988 | 54 |
| 1989 | 78 |
| 1990 | 68 |
| 1991 | 80 |
| 1992 | 56 |
| 1993 | 72 |
| 1994 | 90 |
| 1995 | 102 |
| 1996 | 95 |
| 1997 | 116 |
| 1998 | 131 |
| 1999 | 139 |
| 2000 | 196 |
| 2001 | 233 |
| 2002 | 203 |
| 2003 | 254 |
| 2004 | 239 |
| 2005 | 262 |
| 2006 | 228 |
| 2007 | 185 |
| 2008 | 220 |
| 2009 | 265 |
| 2010 | 261 |
| 2011 | 245 |
| 2012 | 248 |
| 2013 | 262 |
| 2014 | 292 |
| 2015 | 319 |
| 2016 | 385 |
| 2017 | 379 |
| 2018 | 317 |
| 2019 | 265 |
| 2020 | 248 |
| 2021 | 172 |
| 2022 | 21 |
| 2024 | 1 |