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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1968 | 2 |
| 1969 | 5 |
| 1971 | 4 |
| 1972 | 3 |
| 1973 | 175 |
| 1974 | 289 |
| 1975 | 262 |
| 1976 | 387 |
| 1977 | 218 |
| 1978 | 335 |
| 1979 | 53 |
| 1980 | 74 |
| 1981 | 74 |
| 1982 | 80 |
| 1983 | 108 |
| 1984 | 106 |
| 1985 | 162 |
| 1986 | 133 |
| 1987 | 125 |
| 1988 | 125 |
| 1989 | 128 |
| 1990 | 123 |
| 1991 | 88 |
| 1992 | 92 |
| 1993 | 118 |
| 1994 | 103 |
| 1995 | 190 |
| 1996 | 191 |
| 1997 | 88 |
| 1998 | 70 |
| 1999 | 83 |
| 2000 | 59 |
| 2001 | 58 |
| 2002 | 98 |
| 2003 | 243 |
| 2004 | 177 |
| 2005 | 167 |
| 2006 | 169 |
| 2007 | 134 |
| 2008 | 156 |
| 2009 | 162 |
| 2010 | 255 |
| 2011 | 256 |
| 2012 | 345 |
| 2013 | 543 |
| 2014 | 710 |
| 2015 | 804 |
| 2016 | 992 |
| 2017 | 862 |
| 2018 | 761 |
| 2019 | 726 |
| 2020 | 939 |
| 2021 | 949 |
| 2022 | 719 |
| 2023 | 702 |
| 2024 | 230 |