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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 6 |
| 1967 | 16 |
| 1968 | 20 |
| 1969 | 14 |
| 1970 | 23 |
| 1971 | 25 |
| 1972 | 24 |
| 1973 | 46 |
| 1974 | 52 |
| 1975 | 76 |
| 1976 | 86 |
| 1977 | 64 |
| 1978 | 74 |
| 1979 | 88 |
| 1980 | 55 |
| 1981 | 49 |
| 1982 | 123 |
| 1983 | 161 |
| 1984 | 182 |
| 1985 | 165 |
| 1986 | 191 |
| 1987 | 181 |
| 1988 | 208 |
| 1989 | 228 |
| 1990 | 260 |
| 1991 | 221 |
| 1992 | 259 |
| 1993 | 233 |
| 1994 | 237 |
| 1995 | 176 |
| 1996 | 191 |
| 1997 | 201 |
| 1998 | 250 |
| 1999 | 270 |
| 2000 | 235 |
| 2001 | 239 |
| 2002 | 291 |
| 2003 | 272 |
| 2004 | 337 |
| 2005 | 370 |
| 2006 | 357 |
| 2007 | 405 |
| 2008 | 471 |
| 2009 | 396 |
| 2010 | 360 |
| 2011 | 390 |
| 2012 | 430 |
| 2013 | 378 |
| 2014 | 299 |
| 2015 | 329 |
| 2016 | 215 |
| 2017 | 204 |
| 2018 | 184 |
| 2019 | 191 |
| 2020 | 162 |
| 2021 | 127 |
| 2022 | 14 |
| 2023 | 1 |
| 2024 | 6 |