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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1952 | 1 |
| 1954 | 2 |
| 1955 | 11 |
| 1956 | 5 |
| 1957 | 5 |
| 1959 | 11 |
| 1960 | 6 |
| 1961 | 9 |
| 1962 | 13 |
| 1965 | 1 |
| 1966 | 3 |
| 1967 | 9 |
| 1968 | 7 |
| 1969 | 1 |
| 1970 | 1 |
| 1971 | 1 |
| 1972 | 1 |
| 1974 | 5 |
| 1975 | 35 |
| 1976 | 69 |
| 1977 | 57 |
| 1978 | 79 |
| 1979 | 75 |
| 1980 | 89 |
| 1981 | 80 |
| 1982 | 86 |
| 1983 | 83 |
| 1984 | 100 |
| 1985 | 114 |
| 1986 | 93 |
| 1987 | 100 |
| 1988 | 111 |
| 1989 | 109 |
| 1990 | 132 |
| 1991 | 128 |
| 1992 | 115 |
| 1993 | 129 |
| 1994 | 148 |
| 1995 | 111 |
| 1996 | 164 |
| 1997 | 170 |
| 1998 | 181 |
| 1999 | 163 |
| 2000 | 204 |
| 2001 | 180 |
| 2002 | 204 |
| 2003 | 199 |
| 2004 | 239 |
| 2005 | 274 |
| 2006 | 293 |
| 2007 | 296 |
| 2008 | 265 |
| 2009 | 248 |
| 2010 | 250 |
| 2011 | 278 |
| 2012 | 314 |
| 2013 | 306 |
| 2014 | 258 |
| 2015 | 218 |
| 2016 | 210 |
| 2017 | 219 |
| 2018 | 239 |
| 2019 | 264 |
| 2020 | 189 |
| 2021 | 176 |
| 2022 | 167 |
| 2023 | 163 |
| 2024 | 157 |