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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 1 |
| 1955 | 1 |
| 1956 | 2 |
| 1957 | 4 |
| 1958 | 1 |
| 1959 | 2 |
| 1960 | 2 |
| 1961 | 1 |
| 1962 | 1 |
| 1965 | 5 |
| 1966 | 6 |
| 1967 | 16 |
| 1968 | 27 |
| 1969 | 30 |
| 1970 | 33 |
| 1971 | 27 |
| 1972 | 30 |
| 1973 | 27 |
| 1974 | 50 |
| 1975 | 45 |
| 1976 | 44 |
| 1977 | 32 |
| 1978 | 44 |
| 1979 | 55 |
| 1980 | 69 |
| 1981 | 60 |
| 1982 | 51 |
| 1983 | 97 |
| 1984 | 96 |
| 1985 | 127 |
| 1986 | 110 |
| 1987 | 124 |
| 1988 | 124 |
| 1989 | 160 |
| 1990 | 188 |
| 1991 | 239 |
| 1992 | 198 |
| 1993 | 199 |
| 1994 | 231 |
| 1995 | 222 |
| 1996 | 198 |
| 1997 | 230 |
| 1998 | 222 |
| 1999 | 217 |
| 2000 | 261 |
| 2001 | 254 |
| 2002 | 233 |
| 2003 | 307 |
| 2004 | 291 |
| 2005 | 287 |
| 2006 | 313 |
| 2007 | 350 |
| 2008 | 372 |
| 2009 | 369 |
| 2010 | 406 |
| 2011 | 436 |
| 2012 | 454 |
| 2013 | 451 |
| 2014 | 461 |
| 2015 | 475 |
| 2016 | 470 |
| 2017 | 431 |
| 2018 | 434 |
| 2019 | 388 |
| 2020 | 372 |
| 2021 | 334 |
| 2022 | 206 |
| 2023 | 191 |
| 2024 | 98 |