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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1939 | 1 |
| 1943 | 2 |
| 1944 | 1 |
| 1945 | 4 |
| 1946 | 9 |
| 1947 | 16 |
| 1948 | 24 |
| 1949 | 11 |
| 1950 | 21 |
| 1951 | 28 |
| 1952 | 20 |
| 1953 | 22 |
| 1954 | 31 |
| 1955 | 15 |
| 1956 | 19 |
| 1957 | 14 |
| 1958 | 17 |
| 1959 | 22 |
| 1960 | 27 |
| 1961 | 21 |
| 1962 | 18 |
| 1963 | 25 |
| 1964 | 24 |
| 1965 | 34 |
| 1966 | 51 |
| 1967 | 40 |
| 1968 | 40 |
| 1969 | 44 |
| 1970 | 43 |
| 1971 | 46 |
| 1972 | 40 |
| 1973 | 32 |
| 1974 | 49 |
| 1975 | 133 |
| 1976 | 128 |
| 1977 | 117 |
| 1978 | 135 |
| 1979 | 143 |
| 1980 | 181 |
| 1981 | 193 |
| 1982 | 250 |
| 1983 | 222 |
| 1984 | 268 |
| 1985 | 239 |
| 1986 | 267 |
| 1987 | 235 |
| 1988 | 269 |
| 1989 | 295 |
| 1990 | 295 |
| 1991 | 303 |
| 1992 | 309 |
| 1993 | 299 |
| 1994 | 270 |
| 1995 | 269 |
| 1996 | 284 |
| 1997 | 265 |
| 1998 | 271 |
| 1999 | 302 |
| 2000 | 359 |
| 2001 | 379 |
| 2002 | 386 |
| 2003 | 368 |
| 2004 | 359 |
| 2005 | 451 |
| 2006 | 511 |
| 2007 | 493 |
| 2008 | 515 |
| 2009 | 565 |
| 2010 | 568 |
| 2011 | 623 |
| 2012 | 609 |
| 2013 | 596 |
| 2014 | 606 |
| 2015 | 552 |
| 2016 | 525 |
| 2017 | 522 |
| 2018 | 568 |
| 2019 | 614 |
| 2020 | 618 |
| 2021 | 632 |
| 2022 | 570 |
| 2023 | 529 |
| 2024 | 258 |