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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 | 3 |
| 1956 | 2 |
| 1957 | 5 |
| 1958 | 3 |
| 1959 | 3 |
| 1960 | 1 |
| 1961 | 4 |
| 1962 | 4 |
| 1965 | 4 |
| 1966 | 23 |
| 1967 | 31 |
| 1968 | 51 |
| 1969 | 54 |
| 1970 | 69 |
| 1971 | 61 |
| 1972 | 71 |
| 1973 | 87 |
| 1974 | 117 |
| 1975 | 123 |
| 1976 | 163 |
| 1977 | 134 |
| 1978 | 137 |
| 1979 | 180 |
| 1980 | 246 |
| 1981 | 201 |
| 1982 | 151 |
| 1983 | 178 |
| 1984 | 208 |
| 1985 | 197 |
| 1986 | 214 |
| 1987 | 185 |
| 1988 | 231 |
| 1989 | 271 |
| 1990 | 229 |
| 1991 | 231 |
| 1992 | 240 |
| 1993 | 262 |
| 1994 | 255 |
| 1995 | 306 |
| 1996 | 284 |
| 1997 | 319 |
| 1998 | 265 |
| 1999 | 237 |
| 2000 | 265 |
| 2001 | 253 |
| 2002 | 327 |
| 2003 | 308 |
| 2004 | 367 |
| 2005 | 341 |
| 2006 | 392 |
| 2007 | 421 |
| 2008 | 453 |
| 2009 | 445 |
| 2010 | 576 |
| 2011 | 599 |
| 2012 | 647 |
| 2013 | 635 |
| 2014 | 635 |
| 2015 | 630 |
| 2016 | 598 |
| 2017 | 544 |
| 2018 | 583 |
| 2019 | 535 |
| 2020 | 505 |
| 2021 | 522 |
| 2022 | 581 |
| 2023 | 494 |
| 2024 | 515 |
| 2025 | 2 |