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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1960 | 3 |
| 1961 | 2 |
| 1963 | 1 |
| 1964 | 3 |
| 1965 | 14 |
| 1966 | 26 |
| 1967 | 26 |
| 1968 | 34 |
| 1969 | 29 |
| 1970 | 27 |
| 1971 | 29 |
| 1972 | 40 |
| 1973 | 53 |
| 1974 | 60 |
| 1975 | 67 |
| 1976 | 73 |
| 1977 | 86 |
| 1978 | 86 |
| 1979 | 87 |
| 1980 | 86 |
| 1981 | 63 |
| 1982 | 75 |
| 1983 | 61 |
| 1984 | 85 |
| 1985 | 91 |
| 1986 | 62 |
| 1987 | 73 |
| 1988 | 86 |
| 1989 | 89 |
| 1990 | 104 |
| 1991 | 126 |
| 1992 | 121 |
| 1993 | 142 |
| 1994 | 165 |
| 1995 | 172 |
| 1996 | 175 |
| 1997 | 165 |
| 1998 | 173 |
| 1999 | 202 |
| 2000 | 239 |
| 2001 | 242 |
| 2002 | 226 |
| 2003 | 255 |
| 2004 | 255 |
| 2005 | 286 |
| 2006 | 275 |
| 2007 | 300 |
| 2008 | 329 |
| 2009 | 317 |
| 2010 | 373 |
| 2011 | 377 |
| 2012 | 380 |
| 2013 | 382 |
| 2014 | 393 |
| 2015 | 354 |
| 2016 | 379 |
| 2017 | 338 |
| 2018 | 342 |
| 2019 | 361 |
| 2020 | 352 |
| 2021 | 299 |
| 2022 | 275 |
| 2023 | 190 |
| 2024 | 65 |