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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 3 |
| 1949 | 3 |
| 1950 | 1 |
| 1951 | 3 |
| 1952 | 2 |
| 1953 | 4 |
| 1954 | 3 |
| 1955 | 13 |
| 1956 | 10 |
| 1957 | 9 |
| 1958 | 7 |
| 1959 | 3 |
| 1960 | 11 |
| 1961 | 16 |
| 1962 | 48 |
| 1963 | 37 |
| 1964 | 36 |
| 1965 | 41 |
| 1966 | 51 |
| 1967 | 69 |
| 1968 | 82 |
| 1969 | 87 |
| 1970 | 82 |
| 1971 | 72 |
| 1972 | 50 |
| 1973 | 76 |
| 1974 | 89 |
| 1975 | 95 |
| 1976 | 90 |
| 1977 | 94 |
| 1978 | 91 |
| 1979 | 108 |
| 1980 | 135 |
| 1981 | 124 |
| 1982 | 169 |
| 1983 | 212 |
| 1984 | 266 |
| 1985 | 294 |
| 1986 | 262 |
| 1987 | 288 |
| 1988 | 344 |
| 1989 | 386 |
| 1990 | 367 |
| 1991 | 404 |
| 1992 | 496 |
| 1993 | 479 |
| 1994 | 497 |
| 1995 | 482 |
| 1996 | 502 |
| 1997 | 461 |
| 1998 | 539 |
| 1999 | 537 |
| 2000 | 646 |
| 2001 | 624 |
| 2002 | 718 |
| 2003 | 732 |
| 2004 | 772 |
| 2005 | 799 |
| 2006 | 805 |
| 2007 | 823 |
| 2008 | 829 |
| 2009 | 901 |
| 2010 | 937 |
| 2011 | 1057 |
| 2012 | 1108 |
| 2013 | 1207 |
| 2014 | 1277 |
| 2015 | 1329 |
| 2016 | 1488 |
| 2017 | 1534 |
| 2018 | 1551 |
| 2019 | 1528 |
| 2020 | 1718 |
| 2021 | 1892 |
| 2022 | 1840 |
| 2023 | 1654 |
| 2024 | 637 |