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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 1 |
| 1964 | 3 |
| 1967 | 1 |
| 1968 | 1 |
| 1969 | 1 |
| 1970 | 2 |
| 1971 | 1 |
| 1972 | 9 |
| 1973 | 8 |
| 1974 | 6 |
| 1975 | 16 |
| 1976 | 8 |
| 1977 | 7 |
| 1978 | 8 |
| 1979 | 10 |
| 1980 | 15 |
| 1981 | 22 |
| 1982 | 24 |
| 1983 | 21 |
| 1984 | 22 |
| 1985 | 35 |
| 1986 | 33 |
| 1987 | 47 |
| 1988 | 41 |
| 1989 | 37 |
| 1990 | 43 |
| 1991 | 59 |
| 1992 | 73 |
| 1993 | 77 |
| 1994 | 98 |
| 1995 | 120 |
| 1996 | 114 |
| 1997 | 108 |
| 1998 | 115 |
| 1999 | 128 |
| 2000 | 164 |
| 2001 | 204 |
| 2002 | 258 |
| 2003 | 301 |
| 2004 | 336 |
| 2005 | 447 |
| 2006 | 486 |
| 2007 | 564 |
| 2008 | 597 |
| 2009 | 678 |
| 2010 | 770 |
| 2011 | 968 |
| 2012 | 1232 |
| 2013 | 1406 |
| 2014 | 1648 |
| 2015 | 1785 |
| 2016 | 1889 |
| 2017 | 2184 |
| 2018 | 2500 |
| 2019 | 2754 |
| 2020 | 3309 |
| 2021 | 3633 |
| 2022 | 4274 |
| 2023 | 1897 |