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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 2 |
| 1949 | 1 |
| 1951 | 1 |
| 1954 | 2 |
| 1956 | 1 |
| 1957 | 1 |
| 1959 | 1 |
| 1965 | 3 |
| 1966 | 18 |
| 1967 | 16 |
| 1968 | 37 |
| 1969 | 41 |
| 1970 | 59 |
| 1971 | 53 |
| 1972 | 39 |
| 1973 | 51 |
| 1974 | 57 |
| 1975 | 35 |
| 1976 | 57 |
| 1977 | 60 |
| 1978 | 115 |
| 1979 | 110 |
| 1980 | 117 |
| 1981 | 144 |
| 1982 | 131 |
| 1983 | 251 |
| 1984 | 141 |
| 1985 | 145 |
| 1986 | 124 |
| 1987 | 148 |
| 1988 | 149 |
| 1989 | 177 |
| 1990 | 142 |
| 1991 | 146 |
| 1992 | 136 |
| 1993 | 145 |
| 1994 | 144 |
| 1995 | 112 |
| 1996 | 139 |
| 1997 | 142 |
| 1998 | 154 |
| 1999 | 130 |
| 2000 | 151 |
| 2001 | 157 |
| 2002 | 158 |
| 2003 | 169 |
| 2004 | 189 |
| 2005 | 210 |
| 2006 | 215 |
| 2007 | 231 |
| 2008 | 246 |
| 2009 | 267 |
| 2010 | 254 |
| 2011 | 307 |
| 2012 | 347 |
| 2013 | 402 |
| 2014 | 440 |
| 2015 | 493 |
| 2016 | 466 |
| 2017 | 449 |
| 2018 | 455 |
| 2019 | 495 |
| 2020 | 367 |
| 2021 | 197 |
| 2022 | 40 |
| 2023 | 11 |
| 2024 | 3 |