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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 2 |
| 1948 | 1 |
| 1949 | 1 |
| 1957 | 1 |
| 1959 | 3 |
| 1960 | 5 |
| 1961 | 1 |
| 1962 | 3 |
| 1963 | 7 |
| 1964 | 4 |
| 1965 | 5 |
| 1966 | 5 |
| 1967 | 4 |
| 1968 | 3 |
| 1969 | 1 |
| 1970 | 4 |
| 1971 | 8 |
| 1972 | 4 |
| 1973 | 2 |
| 1974 | 6 |
| 1975 | 3 |
| 1976 | 8 |
| 1977 | 6 |
| 1978 | 7 |
| 1979 | 12 |
| 1980 | 8 |
| 1981 | 17 |
| 1982 | 18 |
| 1983 | 20 |
| 1984 | 33 |
| 1985 | 25 |
| 1986 | 35 |
| 1987 | 54 |
| 1988 | 53 |
| 1989 | 65 |
| 1990 | 89 |
| 1991 | 99 |
| 1992 | 123 |
| 1993 | 168 |
| 1994 | 147 |
| 1995 | 174 |
| 1996 | 177 |
| 1997 | 229 |
| 1998 | 248 |
| 1999 | 297 |
| 2000 | 394 |
| 2001 | 422 |
| 2002 | 497 |
| 2003 | 672 |
| 2004 | 768 |
| 2005 | 999 |
| 2006 | 1133 |
| 2007 | 1373 |
| 2008 | 1612 |
| 2009 | 1850 |
| 2010 | 2254 |
| 2011 | 2619 |
| 2012 | 3137 |
| 2013 | 3638 |
| 2014 | 4239 |
| 2015 | 4808 |
| 2016 | 5188 |
| 2017 | 5524 |
| 2018 | 6258 |
| 2019 | 7129 |
| 2020 | 8744 |
| 2021 | 9857 |
| 2022 | 11316 |
| 2023 | 5075 |