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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1950 | 3 |
| 1951 | 7 |
| 1952 | 5 |
| 1953 | 3 |
| 1954 | 3 |
| 1955 | 3 |
| 1956 | 5 |
| 1957 | 12 |
| 1958 | 5 |
| 1959 | 5 |
| 1960 | 7 |
| 1961 | 13 |
| 1962 | 8 |
| 1963 | 14 |
| 1964 | 26 |
| 1965 | 20 |
| 1966 | 10 |
| 1967 | 20 |
| 1968 | 18 |
| 1969 | 19 |
| 1970 | 12 |
| 1971 | 14 |
| 1972 | 17 |
| 1973 | 18 |
| 1974 | 22 |
| 1975 | 18 |
| 1976 | 15 |
| 1977 | 42 |
| 1978 | 35 |
| 1979 | 48 |
| 1980 | 45 |
| 1981 | 68 |
| 1982 | 64 |
| 1983 | 69 |
| 1984 | 63 |
| 1985 | 60 |
| 1986 | 60 |
| 1987 | 77 |
| 1988 | 102 |
| 1989 | 97 |
| 1990 | 93 |
| 1991 | 83 |
| 1992 | 103 |
| 1993 | 121 |
| 1994 | 126 |
| 1995 | 131 |
| 1996 | 132 |
| 1997 | 107 |
| 1998 | 150 |
| 1999 | 138 |
| 2000 | 135 |
| 2001 | 156 |
| 2002 | 149 |
| 2003 | 184 |
| 2004 | 204 |
| 2005 | 246 |
| 2006 | 267 |
| 2007 | 322 |
| 2008 | 356 |
| 2009 | 300 |
| 2010 | 337 |
| 2011 | 375 |
| 2012 | 392 |
| 2013 | 455 |
| 2014 | 439 |
| 2015 | 548 |
| 2016 | 538 |
| 2017 | 503 |
| 2018 | 548 |
| 2019 | 573 |
| 2020 | 722 |
| 2021 | 745 |
| 2022 | 758 |
| 2023 | 683 |
| 2024 | 519 |