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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1965 | 3 |
| 1966 | 21 |
| 1967 | 103 |
| 1968 | 122 |
| 1969 | 155 |
| 1970 | 145 |
| 1971 | 158 |
| 1972 | 187 |
| 1973 | 234 |
| 1974 | 229 |
| 1975 | 218 |
| 1976 | 196 |
| 1977 | 195 |
| 1978 | 197 |
| 1979 | 208 |
| 1980 | 197 |
| 1981 | 185 |
| 1982 | 189 |
| 1983 | 210 |
| 1984 | 229 |
| 1985 | 240 |
| 1986 | 200 |
| 1987 | 251 |
| 1988 | 290 |
| 1989 | 297 |
| 1990 | 342 |
| 1991 | 310 |
| 1992 | 358 |
| 1993 | 398 |
| 1994 | 385 |
| 1995 | 415 |
| 1996 | 380 |
| 1997 | 428 |
| 1998 | 392 |
| 1999 | 440 |
| 2000 | 577 |
| 2001 | 583 |
| 2002 | 549 |
| 2003 | 576 |
| 2004 | 614 |
| 2005 | 716 |
| 2006 | 703 |
| 2007 | 682 |
| 2008 | 797 |
| 2009 | 900 |
| 2010 | 920 |
| 2011 | 940 |
| 2012 | 983 |
| 2013 | 1072 |
| 2014 | 1057 |
| 2015 | 1015 |
| 2016 | 946 |
| 2017 | 987 |
| 2018 | 974 |
| 2019 | 961 |
| 2020 | 823 |
| 2021 | 395 |
| 2022 | 57 |
| 2023 | 21 |
| 2024 | 24 |