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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1953 | 1 |
| 1957 | 3 |
| 1960 | 2 |
| 1961 | 1 |
| 1962 | 2 |
| 1963 | 16 |
| 1964 | 42 |
| 1965 | 38 |
| 1966 | 47 |
| 1967 | 78 |
| 1968 | 77 |
| 1969 | 79 |
| 1970 | 125 |
| 1971 | 148 |
| 1972 | 193 |
| 1973 | 248 |
| 1974 | 254 |
| 1975 | 425 |
| 1976 | 384 |
| 1977 | 450 |
| 1978 | 456 |
| 1979 | 490 |
| 1980 | 574 |
| 1981 | 576 |
| 1982 | 784 |
| 1983 | 913 |
| 1984 | 1023 |
| 1985 | 1133 |
| 1986 | 1205 |
| 1987 | 1168 |
| 1988 | 1246 |
| 1989 | 1576 |
| 1990 | 1703 |
| 1991 | 1879 |
| 1992 | 2113 |
| 1993 | 2324 |
| 1994 | 2622 |
| 1995 | 2840 |
| 1996 | 2938 |
| 1997 | 3318 |
| 1998 | 3341 |
| 1999 | 3677 |
| 2000 | 4125 |
| 2001 | 4211 |
| 2002 | 4463 |
| 2003 | 5203 |
| 2004 | 5522 |
| 2005 | 5978 |
| 2006 | 6313 |
| 2007 | 7099 |
| 2008 | 7796 |
| 2009 | 8338 |
| 2010 | 9441 |
| 2011 | 10985 |
| 2012 | 12390 |
| 2013 | 14029 |
| 2014 | 15416 |
| 2015 | 16328 |
| 2016 | 15592 |
| 2017 | 14862 |
| 2018 | 15231 |
| 2019 | 16200 |
| 2020 | 16583 |
| 2021 | 15383 |
| 2022 | 10622 |
| 2023 | 8962 |
| 2024 | 2519 |