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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 1 |
| 1965 | 1 |
| 1966 | 2 |
| 1970 | 1 |
| 1971 | 1 |
| 1974 | 1 |
| 1976 | 1 |
| 1978 | 3 |
| 1979 | 14 |
| 1980 | 15 |
| 1981 | 26 |
| 1982 | 38 |
| 1983 | 46 |
| 1984 | 47 |
| 1985 | 62 |
| 1986 | 64 |
| 1987 | 88 |
| 1988 | 88 |
| 1989 | 106 |
| 1990 | 105 |
| 1991 | 140 |
| 1992 | 145 |
| 1993 | 130 |
| 1994 | 142 |
| 1995 | 162 |
| 1996 | 195 |
| 1997 | 222 |
| 1998 | 262 |
| 1999 | 286 |
| 2000 | 329 |
| 2001 | 395 |
| 2002 | 448 |
| 2003 | 510 |
| 2004 | 689 |
| 2005 | 828 |
| 2006 | 946 |
| 2007 | 1074 |
| 2008 | 1186 |
| 2009 | 1414 |
| 2010 | 1567 |
| 2011 | 1868 |
| 2012 | 2164 |
| 2013 | 2493 |
| 2014 | 2836 |
| 2015 | 3104 |
| 2016 | 3334 |
| 2017 | 3756 |
| 2018 | 4582 |
| 2019 | 5116 |
| 2020 | 6487 |
| 2021 | 7577 |
| 2022 | 8338 |
| 2023 | 76 |