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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 2 |
| 1965 | 14 |
| 1966 | 45 |
| 1967 | 51 |
| 1968 | 55 |
| 1969 | 80 |
| 1970 | 65 |
| 1971 | 75 |
| 1972 | 66 |
| 1973 | 69 |
| 1974 | 72 |
| 1975 | 52 |
| 1976 | 61 |
| 1977 | 40 |
| 1978 | 71 |
| 1979 | 56 |
| 1980 | 68 |
| 1981 | 95 |
| 1982 | 92 |
| 1983 | 122 |
| 1984 | 101 |
| 1985 | 109 |
| 1986 | 86 |
| 1987 | 111 |
| 1988 | 104 |
| 1989 | 150 |
| 1990 | 140 |
| 1991 | 181 |
| 1992 | 166 |
| 1993 | 209 |
| 1994 | 154 |
| 1995 | 188 |
| 1996 | 174 |
| 1997 | 153 |
| 1998 | 171 |
| 1999 | 148 |
| 2000 | 161 |
| 2001 | 197 |
| 2002 | 184 |
| 2003 | 240 |
| 2004 | 274 |
| 2005 | 228 |
| 2006 | 294 |
| 2007 | 297 |
| 2008 | 310 |
| 2009 | 298 |
| 2010 | 304 |
| 2011 | 324 |
| 2012 | 334 |
| 2013 | 378 |
| 2014 | 413 |
| 2015 | 405 |
| 2016 | 349 |
| 2017 | 372 |
| 2018 | 334 |
| 2019 | 375 |
| 2020 | 405 |
| 2021 | 376 |
| 2022 | 327 |
| 2023 | 301 |
| 2024 | 300 |
| 2025 | 162 |