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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 2 |
| 1948 | 2 |
| 1949 | 2 |
| 1950 | 4 |
| 1951 | 6 |
| 1952 | 3 |
| 1953 | 8 |
| 1954 | 3 |
| 1955 | 4 |
| 1956 | 7 |
| 1957 | 6 |
| 1958 | 7 |
| 1959 | 17 |
| 1960 | 25 |
| 1961 | 43 |
| 1962 | 46 |
| 1963 | 61 |
| 1964 | 69 |
| 1965 | 43 |
| 1966 | 8 |
| 1967 | 6 |
| 1968 | 7 |
| 1969 | 28 |
| 1970 | 58 |
| 1971 | 617 |
| 1972 | 2119 |
| 1973 | 2665 |
| 1974 | 3572 |
| 1975 | 3650 |
| 1976 | 3734 |
| 1977 | 3344 |
| 1978 | 2855 |
| 1979 | 3163 |
| 1980 | 2932 |
| 1981 | 2860 |
| 1982 | 2763 |
| 1983 | 3124 |
| 1984 | 3291 |
| 1985 | 3661 |
| 1986 | 3870 |
| 1987 | 3999 |
| 1988 | 4272 |
| 1989 | 5167 |
| 1990 | 5916 |
| 1991 | 6585 |
| 1992 | 7302 |
| 1993 | 7886 |
| 1994 | 8708 |
| 1995 | 9302 |
| 1996 | 10062 |
| 1997 | 10068 |
| 1998 | 11262 |
| 1999 | 12198 |
| 2000 | 15258 |
| 2001 | 17872 |
| 2002 | 18541 |
| 2003 | 19490 |
| 2004 | 21945 |
| 2005 | 22537 |
| 2006 | 22931 |
| 2007 | 23319 |
| 2008 | 23498 |
| 2009 | 24063 |
| 2010 | 24281 |
| 2011 | 25770 |
| 2012 | 26561 |
| 2013 | 25442 |
| 2014 | 24804 |
| 2015 | 23598 |
| 2016 | 20822 |
| 2017 | 20211 |
| 2018 | 19721 |
| 2019 | 19550 |
| 2020 | 17853 |
| 2021 | 15044 |
| 2022 | 7358 |
| 2023 | 5606 |
| 2024 | 2493 |