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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 2 |
| 1952 | 1 |
| 1953 | 1 |
| 1954 | 3 |
| 1955 | 6 |
| 1956 | 3 |
| 1957 | 1 |
| 1958 | 2 |
| 1959 | 1 |
| 1964 | 1 |
| 1965 | 4 |
| 1966 | 12 |
| 1967 | 22 |
| 1968 | 80 |
| 1969 | 82 |
| 1970 | 131 |
| 1971 | 157 |
| 1972 | 179 |
| 1973 | 205 |
| 1974 | 250 |
| 1975 | 219 |
| 1976 | 253 |
| 1977 | 285 |
| 1978 | 302 |
| 1979 | 341 |
| 1980 | 327 |
| 1981 | 332 |
| 1982 | 377 |
| 1983 | 333 |
| 1984 | 310 |
| 1985 | 308 |
| 1986 | 296 |
| 1987 | 241 |
| 1988 | 282 |
| 1989 | 270 |
| 1990 | 237 |
| 1991 | 189 |
| 1992 | 154 |
| 1993 | 146 |
| 1994 | 135 |
| 1995 | 131 |
| 1996 | 127 |
| 1997 | 94 |
| 1998 | 124 |
| 1999 | 164 |
| 2000 | 130 |
| 2001 | 117 |
| 2002 | 125 |
| 2003 | 125 |
| 2004 | 108 |
| 2005 | 132 |
| 2006 | 80 |
| 2007 | 4 |
| 2008 | 9 |
| 2009 | 27 |
| 2010 | 59 |
| 2011 | 55 |
| 2012 | 86 |
| 2013 | 76 |
| 2014 | 79 |
| 2015 | 74 |
| 2016 | 94 |
| 2017 | 88 |
| 2018 | 91 |
| 2019 | 76 |
| 2020 | 81 |
| 2021 | 108 |
| 2022 | 151 |
| 2023 | 129 |
| 2024 | 43 |