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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1957 | 1 |
| 1964 | 1 |
| 1971 | 1 |
| 1974 | 1 |
| 1976 | 1 |
| 1980 | 2 |
| 1981 | 1 |
| 1982 | 1 |
| 1983 | 2 |
| 1984 | 3 |
| 1985 | 3 |
| 1986 | 6 |
| 1987 | 8 |
| 1988 | 11 |
| 1989 | 20 |
| 1990 | 26 |
| 1991 | 22 |
| 1992 | 36 |
| 1993 | 34 |
| 1994 | 53 |
| 1995 | 46 |
| 1996 | 54 |
| 1997 | 57 |
| 1998 | 63 |
| 1999 | 49 |
| 2000 | 76 |
| 2001 | 105 |
| 2002 | 102 |
| 2003 | 117 |
| 2004 | 164 |
| 2005 | 220 |
| 2006 | 215 |
| 2007 | 264 |
| 2008 | 358 |
| 2009 | 371 |
| 2010 | 432 |
| 2011 | 547 |
| 2012 | 635 |
| 2013 | 707 |
| 2014 | 894 |
| 2015 | 962 |
| 2016 | 1027 |
| 2017 | 1155 |
| 2018 | 1323 |
| 2019 | 1542 |
| 2020 | 1831 |
| 2021 | 2071 |
| 2022 | 2378 |
| 2023 | 1700 |