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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 2 |
| 1959 | 1 |
| 1961 | 3 |
| 1962 | 1 |
| 1965 | 10 |
| 1966 | 13 |
| 1967 | 19 |
| 1968 | 39 |
| 1969 | 39 |
| 1970 | 61 |
| 1971 | 54 |
| 1972 | 41 |
| 1973 | 40 |
| 1974 | 62 |
| 1975 | 46 |
| 1976 | 60 |
| 1977 | 48 |
| 1978 | 41 |
| 1979 | 57 |
| 1980 | 60 |
| 1981 | 57 |
| 1982 | 65 |
| 1983 | 73 |
| 1984 | 106 |
| 1985 | 103 |
| 1986 | 114 |
| 1987 | 94 |
| 1988 | 124 |
| 1989 | 181 |
| 1990 | 238 |
| 1991 | 218 |
| 1992 | 281 |
| 1993 | 254 |
| 1994 | 278 |
| 1995 | 275 |
| 1996 | 264 |
| 1997 | 254 |
| 1998 | 287 |
| 1999 | 309 |
| 2000 | 312 |
| 2001 | 374 |
| 2002 | 379 |
| 2003 | 396 |
| 2004 | 455 |
| 2005 | 467 |
| 2006 | 425 |
| 2007 | 516 |
| 2008 | 658 |
| 2009 | 693 |
| 2010 | 747 |
| 2011 | 888 |
| 2012 | 1107 |
| 2013 | 1372 |
| 2014 | 1504 |
| 2015 | 1431 |
| 2016 | 1216 |
| 2017 | 1208 |
| 2018 | 1308 |
| 2019 | 1437 |
| 2020 | 1432 |
| 2021 | 1232 |
| 2022 | 527 |
| 2023 | 430 |
| 2024 | 326 |