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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 1 |
| 1961 | 2 |
| 1962 | 1 |
| 1963 | 1 |
| 1964 | 1 |
| 1965 | 2 |
| 1966 | 1 |
| 1967 | 2 |
| 1968 | 5 |
| 1969 | 4 |
| 1970 | 4 |
| 1971 | 14 |
| 1972 | 4 |
| 1973 | 5 |
| 1974 | 7 |
| 1975 | 19 |
| 1976 | 7 |
| 1977 | 21 |
| 1978 | 29 |
| 1979 | 22 |
| 1980 | 27 |
| 1981 | 27 |
| 1982 | 22 |
| 1983 | 23 |
| 1984 | 34 |
| 1985 | 31 |
| 1986 | 41 |
| 1987 | 33 |
| 1988 | 33 |
| 1989 | 40 |
| 1990 | 44 |
| 1991 | 63 |
| 1992 | 55 |
| 1993 | 54 |
| 1994 | 48 |
| 1995 | 67 |
| 1996 | 87 |
| 1997 | 85 |
| 1998 | 73 |
| 1999 | 74 |
| 2000 | 89 |
| 2001 | 110 |
| 2002 | 131 |
| 2003 | 126 |
| 2004 | 175 |
| 2005 | 203 |
| 2006 | 235 |
| 2007 | 252 |
| 2008 | 301 |
| 2009 | 327 |
| 2010 | 425 |
| 2011 | 470 |
| 2012 | 476 |
| 2013 | 515 |
| 2014 | 514 |
| 2015 | 496 |
| 2016 | 536 |
| 2017 | 525 |
| 2018 | 536 |
| 2019 | 569 |
| 2020 | 657 |
| 2021 | 799 |
| 2022 | 829 |
| 2023 | 232 |