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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 2 |
| 1948 | 3 |
| 1949 | 9 |
| 1950 | 6 |
| 1951 | 9 |
| 1952 | 8 |
| 1953 | 7 |
| 1954 | 8 |
| 1955 | 5 |
| 1956 | 6 |
| 1957 | 7 |
| 1958 | 13 |
| 1959 | 22 |
| 1960 | 21 |
| 1961 | 35 |
| 1962 | 69 |
| 1963 | 169 |
| 1964 | 266 |
| 1965 | 229 |
| 1966 | 268 |
| 1967 | 392 |
| 1968 | 467 |
| 1969 | 625 |
| 1970 | 577 |
| 1971 | 707 |
| 1972 | 757 |
| 1973 | 813 |
| 1974 | 869 |
| 1975 | 822 |
| 1976 | 744 |
| 1977 | 752 |
| 1978 | 687 |
| 1979 | 724 |
| 1980 | 795 |
| 1981 | 704 |
| 1982 | 751 |
| 1983 | 766 |
| 1984 | 889 |
| 1985 | 892 |
| 1986 | 856 |
| 1987 | 746 |
| 1988 | 737 |
| 1989 | 836 |
| 1990 | 802 |
| 1991 | 761 |
| 1992 | 768 |
| 1993 | 665 |
| 1994 | 585 |
| 1995 | 605 |
| 1996 | 561 |
| 1997 | 527 |
| 1998 | 548 |
| 1999 | 486 |
| 2000 | 473 |
| 2001 | 407 |
| 2002 | 377 |
| 2003 | 384 |
| 2004 | 355 |
| 2005 | 350 |
| 2006 | 387 |
| 2007 | 320 |
| 2008 | 324 |
| 2009 | 295 |
| 2010 | 324 |
| 2011 | 329 |
| 2012 | 342 |
| 2013 | 292 |
| 2014 | 247 |
| 2015 | 278 |
| 2016 | 282 |
| 2017 | 232 |
| 2018 | 239 |
| 2019 | 246 |
| 2020 | 249 |
| 2021 | 201 |
| 2022 | 201 |
| 2023 | 143 |
| 2024 | 60 |