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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 2 |
| 1965 | 1 |
| 1966 | 2 |
| 1969 | 1 |
| 1971 | 2 |
| 1972 | 2 |
| 1973 | 1 |
| 1974 | 2 |
| 1975 | 7 |
| 1976 | 8 |
| 1977 | 8 |
| 1978 | 5 |
| 1979 | 15 |
| 1980 | 15 |
| 1981 | 15 |
| 1982 | 15 |
| 1983 | 12 |
| 1984 | 24 |
| 1985 | 27 |
| 1986 | 40 |
| 1987 | 31 |
| 1988 | 23 |
| 1989 | 36 |
| 1990 | 90 |
| 1991 | 168 |
| 1992 | 455 |
| 1993 | 1670 |
| 1994 | 3284 |
| 1995 | 1534 |
| 1996 | 929 |
| 1997 | 670 |
| 1998 | 567 |
| 1999 | 429 |
| 2000 | 353 |
| 2001 | 277 |
| 2002 | 274 |
| 2003 | 507 |
| 2004 | 411 |
| 2005 | 357 |
| 2006 | 348 |
| 2007 | 516 |
| 2008 | 634 |
| 2009 | 1519 |
| 2010 | 1845 |
| 2011 | 1335 |
| 2012 | 1293 |
| 2013 | 1188 |
| 2014 | 1017 |
| 2015 | 894 |
| 2016 | 820 |
| 2017 | 783 |
| 2018 | 534 |
| 2019 | 445 |
| 2020 | 449 |
| 2021 | 325 |
| 2022 | 306 |
| 2023 | 232 |
| 2024 | 85 |