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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1965 | 1 |
| 1966 | 57 |
| 1967 | 110 |
| 1968 | 134 |
| 1969 | 171 |
| 1970 | 189 |
| 1971 | 238 |
| 1972 | 338 |
| 1973 | 370 |
| 1974 | 320 |
| 1975 | 313 |
| 1976 | 320 |
| 1977 | 267 |
| 1978 | 213 |
| 1979 | 260 |
| 1980 | 208 |
| 1981 | 143 |
| 1982 | 157 |
| 1983 | 191 |
| 1984 | 194 |
| 1985 | 223 |
| 1986 | 213 |
| 1987 | 228 |
| 1988 | 250 |
| 1989 | 312 |
| 1990 | 397 |
| 1991 | 420 |
| 1992 | 483 |
| 1993 | 622 |
| 1994 | 807 |
| 1995 | 943 |
| 1996 | 923 |
| 1997 | 1074 |
| 1998 | 1162 |
| 1999 | 1213 |
| 2000 | 1291 |
| 2001 | 1199 |
| 2002 | 1094 |
| 2003 | 1134 |
| 2004 | 1266 |
| 2005 | 1318 |
| 2006 | 1293 |
| 2007 | 1205 |
| 2008 | 1119 |
| 2009 | 1182 |
| 2010 | 1262 |
| 2011 | 1253 |
| 2012 | 1151 |
| 2013 | 1073 |
| 2014 | 1026 |
| 2015 | 1007 |
| 2016 | 994 |
| 2017 | 910 |
| 2018 | 803 |
| 2019 | 754 |
| 2020 | 1226 |
| 2021 | 913 |
| 2022 | 329 |
| 2023 | 135 |
| 2024 | 462 |
| 2025 | 307 |