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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1952 | 2 |
| 1953 | 11 |
| 1954 | 8 |
| 1955 | 6 |
| 1956 | 5 |
| 1957 | 12 |
| 1958 | 6 |
| 1959 | 7 |
| 1960 | 9 |
| 1961 | 8 |
| 1962 | 7 |
| 1964 | 2 |
| 1965 | 6 |
| 1966 | 19 |
| 1967 | 23 |
| 1968 | 39 |
| 1969 | 28 |
| 1970 | 21 |
| 1971 | 24 |
| 1972 | 32 |
| 1973 | 41 |
| 1974 | 71 |
| 1975 | 44 |
| 1976 | 51 |
| 1977 | 63 |
| 1978 | 42 |
| 1979 | 58 |
| 1980 | 68 |
| 1981 | 61 |
| 1982 | 60 |
| 1983 | 60 |
| 1984 | 68 |
| 1985 | 80 |
| 1986 | 83 |
| 1987 | 64 |
| 1988 | 37 |
| 1989 | 60 |
| 1990 | 54 |
| 1991 | 72 |
| 1992 | 60 |
| 1993 | 49 |
| 1994 | 71 |
| 1995 | 87 |
| 1996 | 73 |
| 1997 | 94 |
| 1998 | 148 |
| 1999 | 159 |
| 2000 | 170 |
| 2001 | 136 |
| 2002 | 187 |
| 2003 | 197 |
| 2004 | 184 |
| 2005 | 218 |
| 2006 | 233 |
| 2007 | 210 |
| 2008 | 229 |
| 2009 | 241 |
| 2010 | 243 |
| 2011 | 265 |
| 2012 | 300 |
| 2013 | 257 |
| 2014 | 253 |
| 2015 | 248 |
| 2016 | 247 |
| 2017 | 212 |
| 2018 | 221 |
| 2019 | 165 |
| 2020 | 214 |
| 2021 | 218 |
| 2022 | 100 |
| 2023 | 68 |
| 2024 | 19 |