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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1961 | 2 |
| 1962 | 2 |
| 1963 | 2 |
| 1964 | 3 |
| 1965 | 4 |
| 1966 | 3 |
| 1967 | 6 |
| 1968 | 7 |
| 1969 | 3 |
| 1970 | 1 |
| 1971 | 10 |
| 1972 | 17 |
| 1973 | 15 |
| 1974 | 13 |
| 1975 | 16 |
| 1976 | 17 |
| 1977 | 14 |
| 1978 | 16 |
| 1979 | 19 |
| 1980 | 24 |
| 1981 | 34 |
| 1982 | 23 |
| 1983 | 24 |
| 1984 | 32 |
| 1985 | 31 |
| 1986 | 58 |
| 1987 | 68 |
| 1988 | 64 |
| 1989 | 64 |
| 1990 | 44 |
| 1991 | 49 |
| 1992 | 56 |
| 1993 | 50 |
| 1994 | 60 |
| 1995 | 61 |
| 1996 | 55 |
| 1997 | 60 |
| 1998 | 51 |
| 1999 | 66 |
| 2000 | 83 |
| 2001 | 88 |
| 2002 | 94 |
| 2003 | 103 |
| 2004 | 128 |
| 2005 | 149 |
| 2006 | 159 |
| 2007 | 184 |
| 2008 | 224 |
| 2009 | 278 |
| 2010 | 294 |
| 2011 | 418 |
| 2012 | 465 |
| 2013 | 521 |
| 2014 | 610 |
| 2015 | 665 |
| 2016 | 703 |
| 2017 | 763 |
| 2018 | 819 |
| 2019 | 852 |
| 2020 | 1043 |
| 2021 | 1270 |
| 2022 | 1187 |
| 2023 | 132 |