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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1950 | 1 |
| 1951 | 1 |
| 1952 | 1 |
| 1955 | 1 |
| 1956 | 2 |
| 1957 | 1 |
| 1959 | 2 |
| 1962 | 2 |
| 1963 | 16 |
| 1964 | 49 |
| 1965 | 30 |
| 1966 | 36 |
| 1967 | 53 |
| 1968 | 65 |
| 1969 | 65 |
| 1970 | 66 |
| 1971 | 82 |
| 1972 | 75 |
| 1973 | 107 |
| 1974 | 128 |
| 1975 | 186 |
| 1976 | 170 |
| 1977 | 207 |
| 1978 | 229 |
| 1979 | 289 |
| 1980 | 242 |
| 1981 | 226 |
| 1982 | 302 |
| 1983 | 361 |
| 1984 | 409 |
| 1985 | 498 |
| 1986 | 556 |
| 1987 | 530 |
| 1988 | 599 |
| 1989 | 649 |
| 1990 | 695 |
| 1991 | 702 |
| 1992 | 708 |
| 1993 | 817 |
| 1994 | 985 |
| 1995 | 1057 |
| 1996 | 931 |
| 1997 | 1017 |
| 1998 | 1004 |
| 1999 | 999 |
| 2000 | 1098 |
| 2001 | 1045 |
| 2002 | 1155 |
| 2003 | 1098 |
| 2004 | 1245 |
| 2005 | 1417 |
| 2006 | 1515 |
| 2007 | 1436 |
| 2008 | 1693 |
| 2009 | 1827 |
| 2010 | 1912 |
| 2011 | 1882 |
| 2012 | 1936 |
| 2013 | 2185 |
| 2014 | 2276 |
| 2015 | 2171 |
| 2016 | 1882 |
| 2017 | 2011 |
| 2018 | 1956 |
| 2019 | 1915 |
| 2020 | 2037 |
| 2021 | 2238 |
| 2022 | 2067 |
| 2023 | 1736 |
| 2024 | 1545 |
| 2025 | 95 |