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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1938 | 1 |
| 1940 | 1 |
| 1951 | 4 |
| 1952 | 4 |
| 1953 | 11 |
| 1954 | 9 |
| 1955 | 6 |
| 1956 | 8 |
| 1957 | 9 |
| 1958 | 6 |
| 1959 | 3 |
| 1960 | 3 |
| 1961 | 6 |
| 1962 | 6 |
| 1963 | 9 |
| 1964 | 10 |
| 1965 | 12 |
| 1966 | 25 |
| 1967 | 25 |
| 1968 | 14 |
| 1969 | 10 |
| 1970 | 18 |
| 1971 | 21 |
| 1972 | 33 |
| 1973 | 18 |
| 1974 | 14 |
| 1975 | 23 |
| 1976 | 27 |
| 1977 | 20 |
| 1978 | 15 |
| 1979 | 33 |
| 1980 | 10 |
| 1981 | 13 |
| 1982 | 11 |
| 1983 | 16 |
| 1984 | 24 |
| 1985 | 21 |
| 1986 | 20 |
| 1987 | 29 |
| 1988 | 58 |
| 1989 | 58 |
| 1990 | 57 |
| 1991 | 45 |
| 1992 | 69 |
| 1993 | 75 |
| 1994 | 57 |
| 1995 | 57 |
| 1996 | 59 |
| 1997 | 75 |
| 1998 | 123 |
| 1999 | 179 |
| 2000 | 288 |
| 2001 | 308 |
| 2002 | 381 |
| 2003 | 410 |
| 2004 | 474 |
| 2005 | 487 |
| 2006 | 547 |
| 2007 | 647 |
| 2008 | 622 |
| 2009 | 649 |
| 2010 | 701 |
| 2011 | 743 |
| 2012 | 744 |
| 2013 | 752 |
| 2014 | 1079 |
| 2015 | 1427 |
| 2016 | 1421 |
| 2017 | 1428 |
| 2018 | 1446 |
| 2019 | 1587 |
| 2020 | 1838 |
| 2021 | 2008 |
| 2022 | 1936 |
| 2023 | 1841 |
| 2024 | 1947 |
| 2025 | 1820 |
| 2026 | 19 |