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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1939 | 1 |
| 1940 | 1 |
| 1946 | 1 |
| 1955 | 3 |
| 1956 | 3 |
| 1957 | 1 |
| 1958 | 3 |
| 1959 | 2 |
| 1960 | 3 |
| 1961 | 3 |
| 1962 | 6 |
| 1963 | 7 |
| 1964 | 3 |
| 1965 | 10 |
| 1966 | 9 |
| 1967 | 6 |
| 1968 | 5 |
| 1969 | 12 |
| 1970 | 10 |
| 1971 | 19 |
| 1972 | 40 |
| 1973 | 38 |
| 1974 | 18 |
| 1975 | 15 |
| 1976 | 21 |
| 1977 | 21 |
| 1978 | 36 |
| 1979 | 27 |
| 1980 | 34 |
| 1981 | 22 |
| 1982 | 30 |
| 1983 | 36 |
| 1984 | 27 |
| 1985 | 20 |
| 1986 | 29 |
| 1987 | 20 |
| 1988 | 36 |
| 1989 | 30 |
| 1990 | 33 |
| 1991 | 41 |
| 1992 | 49 |
| 1993 | 50 |
| 1994 | 49 |
| 1995 | 66 |
| 1996 | 67 |
| 1997 | 83 |
| 1998 | 91 |
| 1999 | 106 |
| 2000 | 104 |
| 2001 | 119 |
| 2002 | 130 |
| 2003 | 129 |
| 2004 | 152 |
| 2005 | 210 |
| 2006 | 240 |
| 2007 | 274 |
| 2008 | 293 |
| 2009 | 384 |
| 2010 | 417 |
| 2011 | 511 |
| 2012 | 557 |
| 2013 | 639 |
| 2014 | 645 |
| 2015 | 757 |
| 2016 | 784 |
| 2017 | 832 |
| 2018 | 885 |
| 2019 | 976 |
| 2020 | 1277 |
| 2021 | 1446 |
| 2022 | 1519 |
| 2023 | 180 |