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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 4 |
| 1960 | 10 |
| 1961 | 12 |
| 1964 | 1 |
| 1965 | 13 |
| 1966 | 15 |
| 1967 | 7 |
| 1971 | 1 |
| 1974 | 2 |
| 1975 | 4 |
| 1976 | 1 |
| 1977 | 35 |
| 1978 | 127 |
| 1979 | 109 |
| 1980 | 174 |
| 1981 | 226 |
| 1982 | 199 |
| 1983 | 246 |
| 1984 | 233 |
| 1985 | 258 |
| 1986 | 229 |
| 1987 | 284 |
| 1988 | 264 |
| 1989 | 317 |
| 1990 | 290 |
| 1991 | 256 |
| 1992 | 282 |
| 1993 | 230 |
| 1994 | 241 |
| 1995 | 191 |
| 1996 | 204 |
| 1997 | 202 |
| 1998 | 214 |
| 1999 | 200 |
| 2000 | 204 |
| 2001 | 186 |
| 2002 | 208 |
| 2003 | 212 |
| 2004 | 225 |
| 2005 | 243 |
| 2006 | 217 |
| 2007 | 249 |
| 2008 | 241 |
| 2009 | 233 |
| 2010 | 274 |
| 2011 | 244 |
| 2012 | 285 |
| 2013 | 270 |
| 2014 | 285 |
| 2015 | 301 |
| 2016 | 242 |
| 2017 | 289 |
| 2018 | 194 |
| 2019 | 222 |
| 2020 | 263 |
| 2021 | 231 |
| 2022 | 154 |
| 2023 | 108 |
| 2024 | 21 |