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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1963 | 1 |
| 1965 | 2 |
| 1966 | 3 |
| 1967 | 1 |
| 1968 | 3 |
| 1969 | 1 |
| 1970 | 4 |
| 1971 | 5 |
| 1972 | 3 |
| 1973 | 1 |
| 1974 | 6 |
| 1975 | 8 |
| 1976 | 7 |
| 1977 | 2 |
| 1978 | 7 |
| 1979 | 7 |
| 1980 | 9 |
| 1981 | 13 |
| 1982 | 11 |
| 1983 | 17 |
| 1984 | 14 |
| 1985 | 23 |
| 1986 | 25 |
| 1987 | 25 |
| 1988 | 27 |
| 1989 | 33 |
| 1990 | 34 |
| 1991 | 49 |
| 1992 | 42 |
| 1993 | 65 |
| 1994 | 58 |
| 1995 | 76 |
| 1996 | 94 |
| 1997 | 109 |
| 1998 | 151 |
| 1999 | 173 |
| 2000 | 195 |
| 2001 | 239 |
| 2002 | 255 |
| 2003 | 316 |
| 2004 | 335 |
| 2005 | 366 |
| 2006 | 497 |
| 2007 | 520 |
| 2008 | 612 |
| 2009 | 670 |
| 2010 | 820 |
| 2011 | 1007 |
| 2012 | 1178 |
| 2013 | 1192 |
| 2014 | 1364 |
| 2015 | 1427 |
| 2016 | 1476 |
| 2017 | 1499 |
| 2018 | 1639 |
| 2019 | 1690 |
| 2020 | 1993 |
| 2021 | 2178 |
| 2022 | 1992 |
| 2023 | 1923 |
| 2024 | 1457 |