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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1954 | 1 |
| 1956 | 7 |
| 1957 | 7 |
| 1958 | 4 |
| 1959 | 3 |
| 1960 | 2 |
| 1961 | 7 |
| 1962 | 4 |
| 1963 | 1 |
| 1965 | 14 |
| 1966 | 30 |
| 1967 | 59 |
| 1968 | 53 |
| 1969 | 76 |
| 1970 | 69 |
| 1971 | 90 |
| 1972 | 65 |
| 1973 | 78 |
| 1974 | 66 |
| 1975 | 58 |
| 1976 | 61 |
| 1977 | 80 |
| 1978 | 67 |
| 1979 | 88 |
| 1980 | 102 |
| 1981 | 121 |
| 1982 | 125 |
| 1983 | 156 |
| 1984 | 189 |
| 1985 | 203 |
| 1986 | 189 |
| 1987 | 197 |
| 1988 | 183 |
| 1989 | 242 |
| 1990 | 283 |
| 1991 | 254 |
| 1992 | 285 |
| 1993 | 290 |
| 1994 | 333 |
| 1995 | 330 |
| 1996 | 280 |
| 1997 | 316 |
| 1998 | 339 |
| 1999 | 357 |
| 2000 | 338 |
| 2001 | 349 |
| 2002 | 372 |
| 2003 | 396 |
| 2004 | 369 |
| 2005 | 433 |
| 2006 | 453 |
| 2007 | 429 |
| 2008 | 510 |
| 2009 | 579 |
| 2010 | 539 |
| 2011 | 609 |
| 2012 | 661 |
| 2013 | 624 |
| 2014 | 649 |
| 2015 | 579 |
| 2016 | 490 |
| 2017 | 509 |
| 2018 | 454 |
| 2019 | 454 |
| 2020 | 359 |
| 2021 | 268 |
| 2022 | 179 |
| 2023 | 160 |
| 2024 | 56 |