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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1961 | 3 |
| 1964 | 3 |
| 1967 | 1 |
| 1968 | 1 |
| 1972 | 2 |
| 1973 | 7 |
| 1974 | 4 |
| 1975 | 5 |
| 1976 | 4 |
| 1977 | 6 |
| 1978 | 5 |
| 1979 | 5 |
| 1980 | 9 |
| 1981 | 12 |
| 1982 | 8 |
| 1983 | 19 |
| 1984 | 10 |
| 1985 | 12 |
| 1986 | 18 |
| 1987 | 19 |
| 1988 | 23 |
| 1989 | 28 |
| 1990 | 28 |
| 1991 | 20 |
| 1992 | 22 |
| 1993 | 42 |
| 1994 | 39 |
| 1995 | 41 |
| 1996 | 44 |
| 1997 | 43 |
| 1998 | 44 |
| 1999 | 67 |
| 2000 | 81 |
| 2001 | 87 |
| 2002 | 116 |
| 2003 | 108 |
| 2004 | 141 |
| 2005 | 139 |
| 2006 | 181 |
| 2007 | 207 |
| 2008 | 262 |
| 2009 | 339 |
| 2010 | 340 |
| 2011 | 400 |
| 2012 | 459 |
| 2013 | 468 |
| 2014 | 577 |
| 2015 | 680 |
| 2016 | 729 |
| 2017 | 784 |
| 2018 | 842 |
| 2019 | 991 |
| 2020 | 1221 |
| 2021 | 1420 |
| 2022 | 1584 |
| 2023 | 730 |