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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1963 | 1 |
| 1966 | 2 |
| 1967 | 2 |
| 1968 | 1 |
| 1969 | 4 |
| 1970 | 4 |
| 1971 | 3 |
| 1972 | 2 |
| 1973 | 3 |
| 1974 | 4 |
| 1975 | 6 |
| 1976 | 3 |
| 1977 | 6 |
| 1978 | 2 |
| 1979 | 3 |
| 1980 | 7 |
| 1981 | 13 |
| 1982 | 6 |
| 1983 | 9 |
| 1984 | 13 |
| 1985 | 21 |
| 1986 | 19 |
| 1987 | 17 |
| 1988 | 22 |
| 1989 | 31 |
| 1990 | 25 |
| 1991 | 29 |
| 1992 | 31 |
| 1993 | 32 |
| 1994 | 37 |
| 1995 | 37 |
| 1996 | 29 |
| 1997 | 40 |
| 1998 | 45 |
| 1999 | 76 |
| 2000 | 109 |
| 2001 | 139 |
| 2002 | 167 |
| 2003 | 203 |
| 2004 | 256 |
| 2005 | 300 |
| 2006 | 357 |
| 2007 | 433 |
| 2008 | 580 |
| 2009 | 601 |
| 2010 | 752 |
| 2011 | 880 |
| 2012 | 934 |
| 2013 | 979 |
| 2014 | 1101 |
| 2015 | 1215 |
| 2016 | 1200 |
| 2017 | 1148 |
| 2018 | 1157 |
| 2019 | 1265 |
| 2020 | 1367 |
| 2021 | 1584 |
| 2022 | 1443 |
| 2023 | 1251 |
| 2024 | 549 |