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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1940 | 1 |
| 1947 | 2 |
| 1948 | 4 |
| 1956 | 1 |
| 1957 | 2 |
| 1958 | 2 |
| 1959 | 2 |
| 1960 | 6 |
| 1961 | 4 |
| 1962 | 8 |
| 1965 | 7 |
| 1966 | 35 |
| 1967 | 131 |
| 1968 | 200 |
| 1969 | 224 |
| 1970 | 213 |
| 1971 | 259 |
| 1972 | 377 |
| 1973 | 398 |
| 1974 | 572 |
| 1975 | 575 |
| 1976 | 556 |
| 1977 | 608 |
| 1978 | 648 |
| 1979 | 568 |
| 1980 | 484 |
| 1981 | 369 |
| 1982 | 481 |
| 1983 | 479 |
| 1984 | 444 |
| 1985 | 490 |
| 1986 | 483 |
| 1987 | 493 |
| 1988 | 560 |
| 1989 | 685 |
| 1990 | 785 |
| 1991 | 900 |
| 1992 | 921 |
| 1993 | 991 |
| 1994 | 1136 |
| 1995 | 1330 |
| 1996 | 1406 |
| 1997 | 1362 |
| 1998 | 1649 |
| 1999 | 1741 |
| 2000 | 1411 |
| 2001 | 1501 |
| 2002 | 1342 |
| 2003 | 1538 |
| 2004 | 1759 |
| 2005 | 1856 |
| 2006 | 2236 |
| 2007 | 2279 |
| 2008 | 2126 |
| 2009 | 1931 |
| 2010 | 2094 |
| 2011 | 1818 |
| 2012 | 1945 |
| 2013 | 1984 |
| 2014 | 2103 |
| 2015 | 2338 |
| 2016 | 2538 |
| 2017 | 2691 |
| 2018 | 2827 |
| 2019 | 2865 |
| 2020 | 2401 |
| 2021 | 1333 |
| 2022 | 1063 |
| 2023 | 1068 |
| 2024 | 2487 |
| 2025 | 1679 |