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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 3 |
| 1948 | 1 |
| 1949 | 1 |
| 1951 | 5 |
| 1952 | 15 |
| 1953 | 17 |
| 1954 | 15 |
| 1955 | 18 |
| 1956 | 22 |
| 1957 | 12 |
| 1958 | 12 |
| 1959 | 11 |
| 1960 | 12 |
| 1961 | 31 |
| 1962 | 12 |
| 1964 | 5 |
| 1966 | 34 |
| 1967 | 182 |
| 1968 | 412 |
| 1969 | 447 |
| 1970 | 489 |
| 1971 | 522 |
| 1972 | 634 |
| 1973 | 697 |
| 1974 | 782 |
| 1975 | 568 |
| 1976 | 465 |
| 1977 | 429 |
| 1978 | 444 |
| 1979 | 541 |
| 1980 | 575 |
| 1981 | 503 |
| 1982 | 518 |
| 1983 | 568 |
| 1984 | 641 |
| 1985 | 699 |
| 1986 | 682 |
| 1987 | 585 |
| 1988 | 704 |
| 1989 | 754 |
| 1990 | 759 |
| 1991 | 806 |
| 1992 | 765 |
| 1993 | 773 |
| 1994 | 868 |
| 1995 | 808 |
| 1996 | 887 |
| 1997 | 927 |
| 1998 | 838 |
| 1999 | 801 |
| 2000 | 877 |
| 2001 | 975 |
| 2002 | 993 |
| 2003 | 1108 |
| 2004 | 1018 |
| 2005 | 1310 |
| 2006 | 1400 |
| 2007 | 1417 |
| 2008 | 1582 |
| 2009 | 1729 |
| 2010 | 1804 |
| 2011 | 1829 |
| 2012 | 1966 |
| 2013 | 1936 |
| 2014 | 1903 |
| 2015 | 1864 |
| 2016 | 1805 |
| 2017 | 1664 |
| 2018 | 1569 |
| 2019 | 1516 |
| 2020 | 1325 |
| 2021 | 815 |
| 2022 | 232 |
| 2023 | 118 |
| 2024 | 41 |