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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 1 |
| 1953 | 2 |
| 1954 | 1 |
| 1955 | 2 |
| 1956 | 3 |
| 1957 | 3 |
| 1958 | 2 |
| 1959 | 2 |
| 1960 | 9 |
| 1961 | 5 |
| 1962 | 13 |
| 1964 | 1 |
| 1965 | 14 |
| 1966 | 42 |
| 1967 | 72 |
| 1968 | 71 |
| 1969 | 46 |
| 1970 | 88 |
| 1971 | 90 |
| 1972 | 108 |
| 1973 | 132 |
| 1974 | 193 |
| 1975 | 172 |
| 1976 | 200 |
| 1977 | 172 |
| 1978 | 150 |
| 1979 | 178 |
| 1980 | 230 |
| 1981 | 260 |
| 1982 | 297 |
| 1983 | 333 |
| 1984 | 334 |
| 1985 | 413 |
| 1986 | 382 |
| 1987 | 291 |
| 1988 | 294 |
| 1989 | 238 |
| 1990 | 218 |
| 1991 | 261 |
| 1992 | 275 |
| 1993 | 260 |
| 1994 | 235 |
| 1995 | 267 |
| 1996 | 320 |
| 1997 | 281 |
| 1998 | 275 |
| 1999 | 247 |
| 2000 | 275 |
| 2001 | 258 |
| 2002 | 261 |
| 2003 | 260 |
| 2004 | 263 |
| 2005 | 247 |
| 2006 | 244 |
| 2007 | 280 |
| 2008 | 278 |
| 2009 | 323 |
| 2010 | 373 |
| 2011 | 356 |
| 2012 | 315 |
| 2013 | 264 |
| 2014 | 257 |
| 2015 | 236 |
| 2016 | 188 |
| 2017 | 183 |
| 2018 | 153 |
| 2019 | 161 |
| 2020 | 131 |
| 2021 | 89 |
| 2022 | 89 |
| 2023 | 71 |
| 2024 | 19 |