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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1960 | 1 |
| 1965 | 1 |
| 1966 | 1 |
| 1967 | 12 |
| 1968 | 2 |
| 1970 | 2 |
| 1971 | 4 |
| 1973 | 3 |
| 1974 | 5 |
| 1975 | 9 |
| 1976 | 13 |
| 1977 | 127 |
| 1978 | 279 |
| 1979 | 471 |
| 1980 | 481 |
| 1981 | 486 |
| 1982 | 529 |
| 1983 | 515 |
| 1984 | 532 |
| 1985 | 505 |
| 1986 | 599 |
| 1987 | 632 |
| 1988 | 671 |
| 1989 | 769 |
| 1990 | 863 |
| 1991 | 777 |
| 1992 | 702 |
| 1993 | 812 |
| 1994 | 891 |
| 1995 | 1097 |
| 1996 | 1094 |
| 1997 | 1282 |
| 1998 | 1177 |
| 1999 | 1450 |
| 2000 | 1587 |
| 2001 | 1379 |
| 2002 | 1458 |
| 2003 | 1524 |
| 2004 | 1627 |
| 2005 | 1838 |
| 2006 | 1827 |
| 2007 | 2015 |
| 2008 | 2220 |
| 2009 | 2297 |
| 2010 | 2438 |
| 2011 | 2561 |
| 2012 | 2722 |
| 2013 | 2548 |
| 2014 | 2618 |
| 2015 | 2534 |
| 2016 | 2360 |
| 2017 | 2141 |
| 2018 | 2447 |
| 2019 | 2631 |
| 2020 | 2830 |
| 2021 | 1614 |
| 2022 | 209 |
| 2023 | 81 |
| 2024 | 39 |