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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 4 |
| 1965 | 2 |
| 1967 | 4 |
| 1968 | 5 |
| 1969 | 3 |
| 1970 | 6 |
| 1971 | 13 |
| 1972 | 7 |
| 1973 | 17 |
| 1974 | 10 |
| 1975 | 19 |
| 1976 | 13 |
| 1977 | 10 |
| 1978 | 14 |
| 1979 | 15 |
| 1980 | 17 |
| 1981 | 13 |
| 1982 | 8 |
| 1983 | 13 |
| 1984 | 9 |
| 1985 | 8 |
| 1986 | 24 |
| 1987 | 23 |
| 1988 | 19 |
| 1989 | 20 |
| 1990 | 23 |
| 1991 | 28 |
| 1992 | 43 |
| 1993 | 36 |
| 1994 | 58 |
| 1995 | 30 |
| 1996 | 53 |
| 1997 | 76 |
| 1998 | 87 |
| 1999 | 101 |
| 2000 | 119 |
| 2001 | 121 |
| 2002 | 130 |
| 2003 | 223 |
| 2004 | 312 |
| 2005 | 385 |
| 2006 | 487 |
| 2007 | 470 |
| 2008 | 508 |
| 2009 | 535 |
| 2010 | 570 |
| 2011 | 726 |
| 2012 | 918 |
| 2013 | 1035 |
| 2014 | 1173 |
| 2015 | 1227 |
| 2016 | 1190 |
| 2017 | 1148 |
| 2018 | 1398 |
| 2019 | 1636 |
| 2020 | 2067 |
| 2021 | 1974 |
| 2022 | 1286 |
| 2023 | 1221 |
| 2024 | 845 |