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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1951 | 3 |
| 1952 | 35 |
| 1953 | 4 |
| 1954 | 3 |
| 1955 | 1 |
| 1956 | 5 |
| 1957 | 18 |
| 1958 | 37 |
| 1959 | 20 |
| 1960 | 22 |
| 1961 | 22 |
| 1962 | 10 |
| 1964 | 2 |
| 1965 | 13 |
| 1966 | 40 |
| 1967 | 42 |
| 1968 | 27 |
| 1969 | 28 |
| 1970 | 36 |
| 1971 | 35 |
| 1972 | 48 |
| 1973 | 33 |
| 1974 | 29 |
| 1975 | 37 |
| 1976 | 29 |
| 1977 | 22 |
| 1978 | 26 |
| 1979 | 39 |
| 1980 | 33 |
| 1981 | 36 |
| 1982 | 24 |
| 1983 | 38 |
| 1984 | 26 |
| 1985 | 34 |
| 1986 | 31 |
| 1987 | 46 |
| 1988 | 67 |
| 1989 | 76 |
| 1990 | 106 |
| 1991 | 109 |
| 1992 | 121 |
| 1993 | 124 |
| 1994 | 123 |
| 1995 | 145 |
| 1996 | 134 |
| 1997 | 153 |
| 1998 | 178 |
| 1999 | 180 |
| 2000 | 190 |
| 2001 | 182 |
| 2002 | 179 |
| 2003 | 186 |
| 2004 | 208 |
| 2005 | 218 |
| 2006 | 248 |
| 2007 | 288 |
| 2008 | 272 |
| 2009 | 308 |
| 2010 | 330 |
| 2011 | 363 |
| 2012 | 334 |
| 2013 | 335 |
| 2014 | 347 |
| 2015 | 406 |
| 2016 | 333 |
| 2017 | 293 |
| 2018 | 306 |
| 2019 | 288 |
| 2020 | 295 |
| 2021 | 234 |
| 2022 | 158 |
| 2023 | 147 |
| 2024 | 37 |