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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 2 |
| 1965 | 20 |
| 1966 | 27 |
| 1967 | 41 |
| 1968 | 33 |
| 1969 | 50 |
| 1970 | 55 |
| 1971 | 58 |
| 1972 | 68 |
| 1973 | 98 |
| 1974 | 151 |
| 1975 | 93 |
| 1976 | 94 |
| 1977 | 123 |
| 1978 | 134 |
| 1979 | 127 |
| 1980 | 117 |
| 1981 | 121 |
| 1982 | 128 |
| 1983 | 131 |
| 1984 | 141 |
| 1985 | 148 |
| 1986 | 187 |
| 1987 | 182 |
| 1988 | 197 |
| 1989 | 163 |
| 1990 | 223 |
| 1991 | 222 |
| 1992 | 251 |
| 1993 | 247 |
| 1994 | 285 |
| 1995 | 258 |
| 1996 | 242 |
| 1997 | 240 |
| 1998 | 218 |
| 1999 | 229 |
| 2000 | 269 |
| 2001 | 271 |
| 2002 | 245 |
| 2003 | 282 |
| 2004 | 267 |
| 2005 | 290 |
| 2006 | 340 |
| 2007 | 307 |
| 2008 | 355 |
| 2009 | 274 |
| 2010 | 304 |
| 2011 | 348 |
| 2012 | 305 |
| 2013 | 318 |
| 2014 | 342 |
| 2015 | 318 |
| 2016 | 288 |
| 2017 | 297 |
| 2018 | 289 |
| 2019 | 279 |
| 2020 | 245 |
| 2021 | 180 |
| 2022 | 82 |
| 2023 | 64 |
| 2024 | 195 |
| 2025 | 210 |