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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 93 |
| 1965 | 80 |
| 1966 | 70 |
| 1967 | 64 |
| 1968 | 69 |
| 1969 | 81 |
| 1970 | 76 |
| 1971 | 85 |
| 1972 | 92 |
| 1973 | 100 |
| 1974 | 106 |
| 1975 | 96 |
| 1976 | 110 |
| 1977 | 153 |
| 1978 | 139 |
| 1979 | 140 |
| 1980 | 128 |
| 1981 | 124 |
| 1982 | 148 |
| 1983 | 140 |
| 1984 | 135 |
| 1985 | 120 |
| 1986 | 151 |
| 1987 | 146 |
| 1988 | 186 |
| 1989 | 212 |
| 1990 | 186 |
| 1991 | 186 |
| 1992 | 199 |
| 1993 | 217 |
| 1994 | 232 |
| 1995 | 233 |
| 1996 | 217 |
| 1997 | 210 |
| 1998 | 219 |
| 1999 | 225 |
| 2000 | 264 |
| 2001 | 221 |
| 2002 | 216 |
| 2003 | 213 |
| 2004 | 265 |
| 2005 | 249 |
| 2006 | 242 |
| 2007 | 223 |
| 2008 | 218 |
| 2009 | 171 |
| 2010 | 199 |
| 2011 | 200 |
| 2012 | 221 |
| 2013 | 257 |
| 2014 | 273 |
| 2015 | 282 |
| 2016 | 299 |
| 2017 | 305 |
| 2018 | 332 |
| 2019 | 438 |
| 2020 | 524 |
| 2021 | 473 |
| 2022 | 356 |
| 2023 | 31 |