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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1949 | 1 |
| 1951 | 1 |
| 1952 | 8 |
| 1953 | 37 |
| 1954 | 32 |
| 1955 | 53 |
| 1956 | 59 |
| 1957 | 53 |
| 1958 | 44 |
| 1959 | 27 |
| 1960 | 4 |
| 1961 | 1 |
| 1962 | 2 |
| 1963 | 3 |
| 1964 | 6 |
| 1969 | 1 |
| 1972 | 4 |
| 1973 | 6 |
| 1974 | 43 |
| 1975 | 36 |
| 1976 | 33 |
| 1977 | 74 |
| 1978 | 89 |
| 1979 | 64 |
| 1980 | 85 |
| 1981 | 101 |
| 1982 | 112 |
| 1983 | 143 |
| 1984 | 152 |
| 1985 | 181 |
| 1986 | 180 |
| 1987 | 212 |
| 1988 | 202 |
| 1989 | 179 |
| 1990 | 186 |
| 1991 | 232 |
| 1992 | 220 |
| 1993 | 220 |
| 1994 | 219 |
| 1995 | 264 |
| 1996 | 266 |
| 1997 | 293 |
| 1998 | 364 |
| 1999 | 393 |
| 2000 | 397 |
| 2001 | 403 |
| 2002 | 406 |
| 2003 | 465 |
| 2004 | 431 |
| 2005 | 502 |
| 2006 | 517 |
| 2007 | 510 |
| 2008 | 585 |
| 2009 | 557 |
| 2010 | 599 |
| 2011 | 665 |
| 2012 | 660 |
| 2013 | 748 |
| 2014 | 698 |
| 2015 | 672 |
| 2016 | 668 |
| 2017 | 586 |
| 2018 | 612 |
| 2019 | 560 |
| 2020 | 520 |
| 2021 | 526 |
| 2022 | 394 |
| 2023 | 282 |
| 2024 | 143 |