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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 18 |
| 1965 | 6 |
| 1966 | 16 |
| 1967 | 16 |
| 1968 | 14 |
| 1969 | 9 |
| 1970 | 12 |
| 1975 | 14 |
| 1976 | 16 |
| 1987 | 84 |
| 1988 | 144 |
| 1989 | 154 |
| 1990 | 167 |
| 1991 | 170 |
| 1992 | 135 |
| 1993 | 135 |
| 1994 | 161 |
| 1995 | 191 |
| 1996 | 224 |
| 1997 | 149 |
| 1998 | 116 |
| 1999 | 171 |
| 2000 | 148 |
| 2001 | 118 |
| 2002 | 107 |
| 2003 | 97 |
| 2004 | 110 |
| 2005 | 116 |
| 2006 | 162 |
| 2007 | 181 |
| 2008 | 231 |
| 2009 | 171 |
| 2010 | 254 |
| 2011 | 281 |
| 2012 | 281 |
| 2013 | 350 |
| 2014 | 300 |
| 2015 | 351 |
| 2016 | 310 |
| 2017 | 396 |
| 2018 | 304 |
| 2019 | 344 |
| 2020 | 290 |
| 2021 | 290 |
| 2022 | 221 |
| 2023 | 271 |
| 2024 | 35 |