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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 1 |
| 1967 | 1 |
| 1969 | 1 |
| 1972 | 1 |
| 1973 | 2 |
| 1976 | 2 |
| 1978 | 1 |
| 1979 | 1 |
| 1981 | 2 |
| 1982 | 4 |
| 1983 | 1 |
| 1984 | 1 |
| 1985 | 2 |
| 1986 | 1 |
| 1987 | 1 |
| 1988 | 6 |
| 1989 | 6 |
| 1990 | 1 |
| 1991 | 4 |
| 1992 | 3 |
| 1993 | 4 |
| 1994 | 6 |
| 1995 | 11 |
| 1996 | 14 |
| 1997 | 15 |
| 1998 | 29 |
| 1999 | 26 |
| 2000 | 36 |
| 2001 | 52 |
| 2002 | 38 |
| 2003 | 68 |
| 2004 | 55 |
| 2005 | 76 |
| 2006 | 82 |
| 2007 | 85 |
| 2008 | 86 |
| 2009 | 100 |
| 2010 | 96 |
| 2011 | 142 |
| 2012 | 161 |
| 2013 | 169 |
| 2014 | 180 |
| 2015 | 150 |
| 2016 | 143 |
| 2017 | 152 |
| 2018 | 190 |
| 2019 | 188 |
| 2020 | 251 |
| 2021 | 242 |
| 2022 | 225 |
| 2023 | 233 |
| 2024 | 225 |
| 2025 | 256 |
| 2026 | 236 |