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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1951 | 9 |
| 1952 | 31 |
| 1953 | 29 |
| 1954 | 27 |
| 1955 | 25 |
| 1956 | 18 |
| 1957 | 33 |
| 1958 | 21 |
| 1959 | 32 |
| 1960 | 48 |
| 1961 | 73 |
| 1962 | 50 |
| 1963 | 1 |
| 1964 | 4 |
| 1965 | 57 |
| 1966 | 80 |
| 1967 | 102 |
| 1968 | 84 |
| 1969 | 113 |
| 1970 | 137 |
| 1971 | 113 |
| 1972 | 108 |
| 1973 | 143 |
| 1974 | 122 |
| 1975 | 140 |
| 1976 | 118 |
| 1977 | 123 |
| 1978 | 133 |
| 1979 | 164 |
| 1980 | 132 |
| 1981 | 144 |
| 1982 | 124 |
| 1983 | 154 |
| 1984 | 171 |
| 1985 | 167 |
| 1986 | 205 |
| 1987 | 159 |
| 1988 | 188 |
| 1989 | 154 |
| 1990 | 140 |
| 1991 | 189 |
| 1992 | 195 |
| 1993 | 180 |
| 1994 | 185 |
| 1995 | 232 |
| 1996 | 224 |
| 1997 | 196 |
| 1998 | 227 |
| 1999 | 245 |
| 2000 | 241 |
| 2001 | 279 |
| 2002 | 247 |
| 2003 | 277 |
| 2004 | 256 |
| 2005 | 249 |
| 2006 | 236 |
| 2007 | 259 |
| 2008 | 296 |
| 2009 | 275 |
| 2010 | 250 |
| 2011 | 331 |
| 2012 | 294 |
| 2013 | 279 |
| 2014 | 235 |
| 2015 | 307 |
| 2016 | 263 |
| 2017 | 240 |
| 2018 | 247 |
| 2019 | 282 |
| 2020 | 203 |
| 2021 | 85 |
| 2022 | 74 |
| 2023 | 66 |
| 2024 | 15 |