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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1969 | 1 |
| 1970 | 2 |
| 1971 | 8 |
| 1972 | 23 |
| 1973 | 20 |
| 1974 | 34 |
| 1975 | 69 |
| 1976 | 32 |
| 1977 | 44 |
| 1978 | 52 |
| 1979 | 56 |
| 1980 | 51 |
| 1981 | 62 |
| 1982 | 79 |
| 1983 | 90 |
| 1984 | 119 |
| 1985 | 119 |
| 1986 | 95 |
| 1987 | 132 |
| 1988 | 155 |
| 1989 | 183 |
| 1990 | 191 |
| 1991 | 181 |
| 1992 | 194 |
| 1993 | 187 |
| 1994 | 222 |
| 1995 | 241 |
| 1996 | 216 |
| 1997 | 226 |
| 1998 | 283 |
| 1999 | 215 |
| 2000 | 229 |
| 2001 | 201 |
| 2002 | 221 |
| 2003 | 263 |
| 2004 | 254 |
| 2005 | 229 |
| 2006 | 258 |
| 2007 | 265 |
| 2008 | 271 |
| 2009 | 321 |
| 2010 | 320 |
| 2011 | 305 |
| 2012 | 303 |
| 2013 | 307 |
| 2014 | 366 |
| 2015 | 293 |
| 2016 | 316 |
| 2017 | 322 |
| 2018 | 310 |
| 2019 | 275 |
| 2020 | 189 |
| 2021 | 117 |
| 2022 | 72 |
| 2023 | 67 |
| 2024 | 52 |