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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 1 |
| 1960 | 1 |
| 1961 | 2 |
| 1962 | 4 |
| 1963 | 4 |
| 1964 | 8 |
| 1965 | 2 |
| 1966 | 2 |
| 1968 | 1 |
| 1969 | 4 |
| 1970 | 5 |
| 1971 | 3 |
| 1972 | 5 |
| 1973 | 3 |
| 1974 | 2 |
| 1975 | 4 |
| 1976 | 2 |
| 1977 | 2 |
| 1978 | 3 |
| 1979 | 10 |
| 1980 | 15 |
| 1981 | 11 |
| 1982 | 12 |
| 1983 | 23 |
| 1984 | 20 |
| 1985 | 20 |
| 1986 | 36 |
| 1987 | 54 |
| 1988 | 37 |
| 1989 | 60 |
| 1990 | 41 |
| 1991 | 51 |
| 1992 | 55 |
| 1993 | 71 |
| 1994 | 80 |
| 1995 | 86 |
| 1996 | 92 |
| 1997 | 113 |
| 1998 | 115 |
| 1999 | 116 |
| 2000 | 131 |
| 2001 | 176 |
| 2002 | 210 |
| 2003 | 261 |
| 2004 | 311 |
| 2005 | 441 |
| 2006 | 458 |
| 2007 | 535 |
| 2008 | 654 |
| 2009 | 782 |
| 2010 | 899 |
| 2011 | 1059 |
| 2012 | 1253 |
| 2013 | 1500 |
| 2014 | 1650 |
| 2015 | 1776 |
| 2016 | 2002 |
| 2017 | 2198 |
| 2018 | 2541 |
| 2019 | 2967 |
| 2020 | 3600 |
| 2021 | 4079 |
| 2022 | 4804 |
| 2023 | 2230 |