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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 2 |
| 1952 | 4 |
| 1953 | 12 |
| 1954 | 19 |
| 1955 | 22 |
| 1956 | 10 |
| 1957 | 17 |
| 1958 | 13 |
| 1959 | 5 |
| 1960 | 9 |
| 1961 | 7 |
| 1962 | 7 |
| 1963 | 1 |
| 1965 | 3 |
| 1966 | 42 |
| 1967 | 97 |
| 1968 | 120 |
| 1969 | 117 |
| 1970 | 110 |
| 1971 | 136 |
| 1972 | 128 |
| 1973 | 140 |
| 1974 | 168 |
| 1975 | 134 |
| 1976 | 145 |
| 1977 | 132 |
| 1978 | 170 |
| 1979 | 185 |
| 1980 | 234 |
| 1981 | 234 |
| 1982 | 243 |
| 1983 | 253 |
| 1984 | 304 |
| 1985 | 317 |
| 1986 | 272 |
| 1987 | 264 |
| 1988 | 269 |
| 1989 | 239 |
| 1990 | 281 |
| 1991 | 255 |
| 1992 | 258 |
| 1993 | 291 |
| 1994 | 271 |
| 1995 | 280 |
| 1996 | 286 |
| 1997 | 268 |
| 1998 | 245 |
| 1999 | 264 |
| 2000 | 224 |
| 2001 | 213 |
| 2002 | 221 |
| 2003 | 226 |
| 2004 | 225 |
| 2005 | 240 |
| 2006 | 247 |
| 2007 | 207 |
| 2008 | 241 |
| 2009 | 246 |
| 2010 | 238 |
| 2011 | 250 |
| 2012 | 257 |
| 2013 | 233 |
| 2014 | 270 |
| 2015 | 227 |
| 2016 | 183 |
| 2017 | 194 |
| 2018 | 175 |
| 2019 | 174 |
| 2020 | 160 |
| 2021 | 87 |
| 2022 | 23 |
| 2023 | 15 |
| 2024 | 2 |