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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 2 |
| 1948 | 25 |
| 1949 | 57 |
| 1950 | 10 |
| 1958 | 26 |
| 1959 | 44 |
| 1960 | 41 |
| 1961 | 40 |
| 1962 | 43 |
| 1963 | 33 |
| 1964 | 42 |
| 1965 | 39 |
| 1966 | 33 |
| 1967 | 30 |
| 1968 | 37 |
| 1969 | 45 |
| 1970 | 45 |
| 1971 | 37 |
| 1972 | 36 |
| 1973 | 42 |
| 1974 | 47 |
| 1975 | 32 |
| 1976 | 38 |
| 1977 | 30 |
| 1978 | 35 |
| 1979 | 38 |
| 1980 | 30 |
| 1981 | 27 |
| 1982 | 19 |
| 1983 | 17 |
| 1984 | 23 |
| 1985 | 29 |
| 1986 | 29 |
| 1987 | 31 |
| 1988 | 99 |
| 1989 | 86 |
| 1990 | 98 |
| 1991 | 98 |
| 1992 | 99 |
| 1993 | 82 |
| 1994 | 97 |
| 1995 | 68 |
| 1996 | 116 |
| 1997 | 71 |
| 1998 | 65 |
| 1999 | 63 |
| 2000 | 208 |
| 2001 | 139 |
| 2002 | 160 |
| 2003 | 164 |
| 2004 | 217 |
| 2005 | 245 |
| 2006 | 236 |
| 2007 | 227 |
| 2008 | 224 |
| 2009 | 217 |
| 2010 | 229 |
| 2011 | 255 |
| 2012 | 256 |
| 2013 | 258 |
| 2014 | 277 |
| 2015 | 164 |
| 2016 | 336 |
| 2017 | 347 |
| 2018 | 247 |
| 2019 | 1 |
| 2020 | 1 |
| 2024 | 0 |