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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 2 |
| 1954 | 1 |
| 1955 | 3 |
| 1956 | 3 |
| 1959 | 2 |
| 1960 | 3 |
| 1961 | 3 |
| 1962 | 3 |
| 1963 | 4 |
| 1964 | 4 |
| 1965 | 1 |
| 1967 | 1 |
| 1970 | 3 |
| 1971 | 4 |
| 1972 | 111 |
| 1973 | 201 |
| 1974 | 306 |
| 1975 | 310 |
| 1976 | 402 |
| 1977 | 314 |
| 1978 | 376 |
| 1979 | 418 |
| 1980 | 374 |
| 1981 | 477 |
| 1982 | 565 |
| 1983 | 575 |
| 1984 | 708 |
| 1985 | 684 |
| 1986 | 830 |
| 1987 | 1119 |
| 1988 | 1268 |
| 1989 | 1184 |
| 1990 | 1355 |
| 1991 | 1309 |
| 1992 | 1445 |
| 1993 | 1285 |
| 1994 | 1258 |
| 1995 | 1387 |
| 1996 | 1754 |
| 1997 | 1946 |
| 1998 | 1776 |
| 1999 | 1627 |
| 2000 | 1580 |
| 2001 | 1609 |
| 2002 | 1586 |
| 2003 | 1654 |
| 2004 | 1778 |
| 2005 | 1882 |
| 2006 | 2030 |
| 2007 | 2126 |
| 2008 | 2030 |
| 2009 | 1665 |
| 2010 | 1694 |
| 2011 | 2277 |
| 2012 | 3123 |
| 2013 | 3691 |
| 2014 | 3731 |
| 2015 | 3982 |
| 2016 | 4185 |
| 2017 | 4232 |
| 2018 | 4308 |
| 2019 | 4865 |
| 2020 | 4899 |
| 2021 | 4700 |
| 2022 | 2166 |
| 2023 | 1989 |
| 2024 | 915 |