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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 7 |
| 1952 | 1 |
| 1953 | 9 |
| 1954 | 18 |
| 1955 | 14 |
| 1956 | 18 |
| 1957 | 10 |
| 1958 | 13 |
| 1959 | 28 |
| 1960 | 21 |
| 1961 | 15 |
| 1962 | 7 |
| 1964 | 1 |
| 1965 | 34 |
| 1966 | 48 |
| 1967 | 76 |
| 1968 | 92 |
| 1969 | 102 |
| 1970 | 106 |
| 1971 | 125 |
| 1972 | 118 |
| 1973 | 73 |
| 1974 | 100 |
| 1975 | 91 |
| 1976 | 88 |
| 1977 | 96 |
| 1978 | 79 |
| 1979 | 77 |
| 1980 | 124 |
| 1981 | 130 |
| 1982 | 173 |
| 1983 | 178 |
| 1984 | 186 |
| 1985 | 193 |
| 1986 | 163 |
| 1987 | 181 |
| 1988 | 178 |
| 1989 | 178 |
| 1990 | 326 |
| 1991 | 313 |
| 1992 | 289 |
| 1993 | 265 |
| 1994 | 262 |
| 1995 | 235 |
| 1996 | 270 |
| 1997 | 279 |
| 1998 | 280 |
| 1999 | 273 |
| 2000 | 315 |
| 2001 | 327 |
| 2002 | 333 |
| 2003 | 356 |
| 2004 | 307 |
| 2005 | 363 |
| 2006 | 430 |
| 2007 | 419 |
| 2008 | 401 |
| 2009 | 443 |
| 2010 | 442 |
| 2011 | 448 |
| 2012 | 481 |
| 2013 | 510 |
| 2014 | 515 |
| 2015 | 507 |
| 2016 | 470 |
| 2017 | 458 |
| 2018 | 478 |
| 2019 | 481 |
| 2020 | 484 |
| 2021 | 419 |
| 2022 | 338 |
| 2023 | 295 |
| 2024 | 98 |