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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 17 |
| 1966 | 27 |
| 1967 | 38 |
| 1968 | 43 |
| 1969 | 41 |
| 1970 | 63 |
| 1971 | 85 |
| 1972 | 114 |
| 1973 | 152 |
| 1974 | 183 |
| 1975 | 220 |
| 1976 | 226 |
| 1977 | 238 |
| 1978 | 269 |
| 1979 | 320 |
| 1980 | 329 |
| 1981 | 327 |
| 1982 | 325 |
| 1983 | 305 |
| 1984 | 369 |
| 1985 | 366 |
| 1986 | 360 |
| 1987 | 341 |
| 1988 | 319 |
| 1989 | 335 |
| 1990 | 365 |
| 1991 | 359 |
| 1992 | 351 |
| 1993 | 300 |
| 1994 | 331 |
| 1995 | 298 |
| 1996 | 325 |
| 1997 | 285 |
| 1998 | 277 |
| 1999 | 261 |
| 2000 | 222 |
| 2001 | 273 |
| 2002 | 230 |
| 2003 | 248 |
| 2004 | 209 |
| 2005 | 226 |
| 2006 | 236 |
| 2007 | 284 |
| 2008 | 236 |
| 2009 | 212 |
| 2010 | 213 |
| 2011 | 193 |
| 2012 | 208 |
| 2013 | 180 |
| 2014 | 164 |
| 2015 | 167 |
| 2016 | 159 |
| 2017 | 143 |
| 2018 | 111 |
| 2019 | 106 |
| 2020 | 94 |
| 2021 | 77 |
| 2022 | 69 |
| 2023 | 71 |
| 2024 | 52 |