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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 1 |
| 1963 | 1 |
| 1965 | 1 |
| 1966 | 2 |
| 1967 | 1 |
| 1969 | 2 |
| 1970 | 2 |
| 1971 | 2 |
| 1973 | 3 |
| 1974 | 4 |
| 1975 | 10 |
| 1976 | 10 |
| 1977 | 12 |
| 1978 | 22 |
| 1979 | 24 |
| 1980 | 27 |
| 1981 | 36 |
| 1982 | 33 |
| 1983 | 32 |
| 1984 | 29 |
| 1985 | 33 |
| 1986 | 45 |
| 1987 | 42 |
| 1988 | 48 |
| 1989 | 64 |
| 1990 | 63 |
| 1991 | 70 |
| 1992 | 90 |
| 1993 | 90 |
| 1994 | 121 |
| 1995 | 126 |
| 1996 | 135 |
| 1997 | 137 |
| 1998 | 143 |
| 1999 | 141 |
| 2000 | 194 |
| 2001 | 190 |
| 2002 | 173 |
| 2003 | 214 |
| 2004 | 215 |
| 2005 | 258 |
| 2006 | 272 |
| 2007 | 252 |
| 2008 | 298 |
| 2009 | 259 |
| 2010 | 313 |
| 2011 | 310 |
| 2012 | 351 |
| 2013 | 339 |
| 2014 | 368 |
| 2015 | 339 |
| 2016 | 254 |
| 2017 | 233 |
| 2018 | 322 |
| 2019 | 313 |
| 2020 | 323 |
| 2021 | 368 |
| 2022 | 329 |
| 2023 | 267 |
| 2024 | 111 |