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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 4 |
| 1972 | 3 |
| 1973 | 49 |
| 1974 | 43 |
| 1975 | 116 |
| 1976 | 56 |
| 1977 | 83 |
| 1978 | 120 |
| 1979 | 105 |
| 1980 | 108 |
| 1981 | 120 |
| 1982 | 94 |
| 1983 | 101 |
| 1984 | 142 |
| 1985 | 113 |
| 1986 | 138 |
| 1987 | 133 |
| 1988 | 195 |
| 1989 | 155 |
| 1990 | 144 |
| 1991 | 137 |
| 1992 | 146 |
| 1993 | 136 |
| 1994 | 174 |
| 1995 | 252 |
| 1996 | 245 |
| 1997 | 199 |
| 1998 | 135 |
| 1999 | 125 |
| 2000 | 236 |
| 2001 | 239 |
| 2002 | 319 |
| 2003 | 242 |
| 2004 | 261 |
| 2005 | 391 |
| 2006 | 417 |
| 2007 | 391 |
| 2008 | 359 |
| 2009 | 334 |
| 2010 | 262 |
| 2011 | 260 |
| 2012 | 277 |
| 2013 | 277 |
| 2014 | 177 |
| 2015 | 168 |
| 2016 | 198 |
| 2017 | 230 |
| 2018 | 180 |
| 2019 | 191 |
| 2020 | 184 |
| 2021 | 307 |
| 2022 | 241 |
| 2023 | 215 |
| 2024 | 102 |