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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1963 | 1 |
| 1964 | 17 |
| 1965 | 79 |
| 1966 | 201 |
| 1967 | 218 |
| 1968 | 255 |
| 1969 | 250 |
| 1970 | 262 |
| 1971 | 308 |
| 1972 | 314 |
| 1973 | 335 |
| 1974 | 395 |
| 1975 | 322 |
| 1976 | 270 |
| 1977 | 239 |
| 1978 | 213 |
| 1979 | 222 |
| 1980 | 208 |
| 1981 | 157 |
| 1982 | 155 |
| 1983 | 136 |
| 1984 | 130 |
| 1985 | 112 |
| 1986 | 105 |
| 1987 | 89 |
| 1988 | 101 |
| 1989 | 103 |
| 1990 | 118 |
| 1991 | 123 |
| 1992 | 94 |
| 1993 | 100 |
| 1994 | 116 |
| 1995 | 127 |
| 1996 | 105 |
| 1997 | 128 |
| 1998 | 127 |
| 1999 | 119 |
| 2000 | 157 |
| 2001 | 198 |
| 2002 | 177 |
| 2003 | 154 |
| 2004 | 170 |
| 2005 | 192 |
| 2006 | 195 |
| 2007 | 198 |
| 2008 | 261 |
| 2009 | 273 |
| 2010 | 253 |
| 2011 | 255 |
| 2012 | 271 |
| 2013 | 257 |
| 2014 | 288 |
| 2015 | 287 |
| 2016 | 273 |
| 2017 | 270 |
| 2018 | 234 |
| 2019 | 275 |
| 2020 | 297 |
| 2021 | 314 |
| 2022 | 196 |
| 2023 | 155 |
| 2024 | 133 |