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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1939 | 1 |
| 1946 | 3 |
| 1947 | 1 |
| 1948 | 2 |
| 1949 | 6 |
| 1950 | 6 |
| 1951 | 4 |
| 1952 | 3 |
| 1953 | 2 |
| 1954 | 5 |
| 1955 | 9 |
| 1956 | 9 |
| 1957 | 9 |
| 1958 | 5 |
| 1959 | 3 |
| 1960 | 2 |
| 1961 | 6 |
| 1962 | 7 |
| 1963 | 13 |
| 1964 | 23 |
| 1965 | 8 |
| 1966 | 6 |
| 1967 | 4 |
| 1968 | 6 |
| 1969 | 6 |
| 1970 | 18 |
| 1971 | 9 |
| 1972 | 14 |
| 1973 | 10 |
| 1974 | 11 |
| 1975 | 16 |
| 1976 | 15 |
| 1977 | 18 |
| 1978 | 14 |
| 1979 | 24 |
| 1980 | 32 |
| 1981 | 34 |
| 1982 | 38 |
| 1983 | 47 |
| 1984 | 39 |
| 1985 | 42 |
| 1986 | 54 |
| 1987 | 62 |
| 1988 | 66 |
| 1989 | 83 |
| 1990 | 74 |
| 1991 | 59 |
| 1992 | 87 |
| 1993 | 90 |
| 1994 | 93 |
| 1995 | 105 |
| 1996 | 112 |
| 1997 | 154 |
| 1998 | 141 |
| 1999 | 153 |
| 2000 | 140 |
| 2001 | 141 |
| 2002 | 156 |
| 2003 | 150 |
| 2004 | 157 |
| 2005 | 183 |
| 2006 | 207 |
| 2007 | 203 |
| 2008 | 233 |
| 2009 | 264 |
| 2010 | 305 |
| 2011 | 308 |
| 2012 | 335 |
| 2013 | 368 |
| 2014 | 336 |
| 2015 | 366 |
| 2016 | 386 |
| 2017 | 407 |
| 2018 | 408 |
| 2019 | 394 |
| 2020 | 454 |
| 2021 | 516 |
| 2022 | 463 |
| 2023 | 142 |