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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 2 |
| 1956 | 1 |
| 1957 | 2 |
| 1958 | 2 |
| 1963 | 1 |
| 1964 | 2 |
| 1965 | 5 |
| 1966 | 3 |
| 1968 | 7 |
| 1969 | 6 |
| 1970 | 13 |
| 1971 | 14 |
| 1972 | 21 |
| 1973 | 17 |
| 1974 | 12 |
| 1975 | 17 |
| 1976 | 33 |
| 1977 | 29 |
| 1978 | 21 |
| 1979 | 41 |
| 1980 | 57 |
| 1981 | 63 |
| 1982 | 59 |
| 1983 | 64 |
| 1984 | 70 |
| 1985 | 71 |
| 1986 | 103 |
| 1987 | 81 |
| 1988 | 118 |
| 1989 | 88 |
| 1990 | 130 |
| 1991 | 126 |
| 1992 | 140 |
| 1993 | 142 |
| 1994 | 149 |
| 1995 | 156 |
| 1996 | 130 |
| 1997 | 174 |
| 1998 | 151 |
| 1999 | 163 |
| 2000 | 178 |
| 2001 | 197 |
| 2002 | 241 |
| 2003 | 288 |
| 2004 | 325 |
| 2005 | 400 |
| 2006 | 480 |
| 2007 | 589 |
| 2008 | 643 |
| 2009 | 754 |
| 2010 | 837 |
| 2011 | 985 |
| 2012 | 1122 |
| 2013 | 1320 |
| 2014 | 1449 |
| 2015 | 1504 |
| 2016 | 1647 |
| 2017 | 1703 |
| 2018 | 1789 |
| 2019 | 1843 |
| 2020 | 2465 |
| 2021 | 2969 |
| 2022 | 2931 |
| 2023 | 1370 |