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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1966 | 5 |
| 1967 | 1 |
| 1969 | 2 |
| 1970 | 8 |
| 1971 | 6 |
| 1972 | 12 |
| 1973 | 11 |
| 1974 | 9 |
| 1975 | 13 |
| 1976 | 10 |
| 1977 | 16 |
| 1978 | 12 |
| 1979 | 5 |
| 1980 | 15 |
| 1981 | 6 |
| 1982 | 6 |
| 1983 | 12 |
| 1984 | 20 |
| 1985 | 31 |
| 1986 | 23 |
| 1987 | 41 |
| 1988 | 56 |
| 1989 | 65 |
| 1990 | 79 |
| 1991 | 77 |
| 1992 | 70 |
| 1993 | 83 |
| 1994 | 101 |
| 1995 | 128 |
| 1996 | 134 |
| 1997 | 123 |
| 1998 | 112 |
| 1999 | 161 |
| 2000 | 201 |
| 2001 | 201 |
| 2002 | 216 |
| 2003 | 252 |
| 2004 | 248 |
| 2005 | 261 |
| 2006 | 338 |
| 2007 | 388 |
| 2008 | 367 |
| 2009 | 370 |
| 2010 | 417 |
| 2011 | 459 |
| 2012 | 520 |
| 2013 | 532 |
| 2014 | 637 |
| 2015 | 685 |
| 2016 | 598 |
| 2017 | 554 |
| 2018 | 520 |
| 2019 | 524 |
| 2020 | 392 |
| 2021 | 237 |
| 2022 | 31 |
| 2023 | 9 |
| 2024 | 24 |