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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1949 | 1 |
| 1952 | 1 |
| 1954 | 2 |
| 1955 | 3 |
| 1956 | 9 |
| 1957 | 5 |
| 1958 | 12 |
| 1959 | 7 |
| 1960 | 7 |
| 1961 | 14 |
| 1962 | 16 |
| 1965 | 8 |
| 1966 | 44 |
| 1967 | 65 |
| 1968 | 85 |
| 1969 | 87 |
| 1970 | 61 |
| 1971 | 76 |
| 1972 | 79 |
| 1973 | 102 |
| 1974 | 81 |
| 1975 | 84 |
| 1976 | 106 |
| 1977 | 115 |
| 1978 | 98 |
| 1979 | 106 |
| 1980 | 94 |
| 1981 | 96 |
| 1982 | 72 |
| 1983 | 53 |
| 1984 | 55 |
| 1985 | 49 |
| 1986 | 63 |
| 1987 | 61 |
| 1988 | 49 |
| 1989 | 59 |
| 1990 | 63 |
| 1991 | 74 |
| 1992 | 65 |
| 1993 | 87 |
| 1994 | 96 |
| 1995 | 114 |
| 1996 | 115 |
| 1997 | 112 |
| 1998 | 166 |
| 1999 | 170 |
| 2000 | 146 |
| 2001 | 194 |
| 2002 | 166 |
| 2003 | 159 |
| 2004 | 204 |
| 2005 | 190 |
| 2006 | 231 |
| 2007 | 260 |
| 2008 | 266 |
| 2009 | 427 |
| 2010 | 483 |
| 2011 | 477 |
| 2012 | 622 |
| 2013 | 712 |
| 2014 | 713 |
| 2015 | 661 |
| 2016 | 772 |
| 2017 | 856 |
| 2018 | 861 |
| 2019 | 921 |
| 2020 | 770 |
| 2021 | 376 |
| 2022 | 134 |
| 2023 | 79 |
| 2024 | 147 |