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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1965 | 1 |
| 1966 | 11 |
| 1967 | 5 |
| 1968 | 16 |
| 1969 | 19 |
| 1970 | 19 |
| 1971 | 22 |
| 1972 | 31 |
| 1973 | 25 |
| 1974 | 42 |
| 1975 | 19 |
| 1976 | 27 |
| 1977 | 38 |
| 1978 | 48 |
| 1979 | 39 |
| 1980 | 38 |
| 1981 | 33 |
| 1982 | 40 |
| 1983 | 40 |
| 1984 | 38 |
| 1985 | 43 |
| 1986 | 46 |
| 1987 | 33 |
| 1988 | 39 |
| 1989 | 43 |
| 1990 | 52 |
| 1991 | 61 |
| 1992 | 53 |
| 1993 | 64 |
| 1994 | 48 |
| 1995 | 60 |
| 1996 | 76 |
| 1997 | 72 |
| 1998 | 75 |
| 1999 | 94 |
| 2000 | 95 |
| 2001 | 95 |
| 2002 | 104 |
| 2003 | 111 |
| 2004 | 127 |
| 2005 | 204 |
| 2006 | 223 |
| 2007 | 266 |
| 2008 | 295 |
| 2009 | 275 |
| 2010 | 268 |
| 2011 | 291 |
| 2012 | 334 |
| 2013 | 352 |
| 2014 | 311 |
| 2015 | 254 |
| 2016 | 307 |
| 2017 | 280 |
| 2018 | 314 |
| 2019 | 317 |
| 2020 | 261 |
| 2021 | 276 |
| 2022 | 171 |
| 2023 | 125 |
| 2024 | 69 |