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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1949 | 3 |
| 1950 | 2 |
| 1951 | 8 |
| 1952 | 6 |
| 1953 | 8 |
| 1954 | 3 |
| 1955 | 1 |
| 1956 | 3 |
| 1957 | 6 |
| 1958 | 3 |
| 1959 | 2 |
| 1960 | 9 |
| 1961 | 8 |
| 1962 | 11 |
| 1963 | 38 |
| 1964 | 148 |
| 1965 | 172 |
| 1966 | 187 |
| 1967 | 232 |
| 1968 | 298 |
| 1969 | 347 |
| 1970 | 373 |
| 1971 | 374 |
| 1972 | 456 |
| 1973 | 430 |
| 1974 | 497 |
| 1975 | 512 |
| 1976 | 374 |
| 1977 | 293 |
| 1978 | 222 |
| 1979 | 227 |
| 1980 | 241 |
| 1981 | 243 |
| 1982 | 233 |
| 1983 | 264 |
| 1984 | 263 |
| 1985 | 294 |
| 1986 | 183 |
| 1987 | 88 |
| 1988 | 98 |
| 1989 | 143 |
| 1990 | 142 |
| 1991 | 139 |
| 1992 | 148 |
| 1993 | 169 |
| 1994 | 158 |
| 1995 | 168 |
| 1996 | 135 |
| 1997 | 192 |
| 1998 | 180 |
| 1999 | 194 |
| 2000 | 199 |
| 2001 | 237 |
| 2002 | 225 |
| 2003 | 228 |
| 2004 | 246 |
| 2005 | 254 |
| 2006 | 254 |
| 2007 | 263 |
| 2008 | 272 |
| 2009 | 278 |
| 2010 | 253 |
| 2011 | 265 |
| 2012 | 314 |
| 2013 | 319 |
| 2014 | 271 |
| 2015 | 254 |
| 2016 | 260 |
| 2017 | 256 |
| 2018 | 245 |
| 2019 | 216 |
| 2020 | 201 |
| 2021 | 191 |
| 2022 | 98 |
| 2023 | 59 |
| 2024 | 24 |