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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1965 | 1 |
| 1966 | 6 |
| 1967 | 1 |
| 1968 | 1 |
| 1972 | 1 |
| 1974 | 1 |
| 1975 | 6 |
| 1976 | 6 |
| 1977 | 4 |
| 1978 | 11 |
| 1979 | 42 |
| 1980 | 80 |
| 1981 | 85 |
| 1982 | 136 |
| 1983 | 160 |
| 1984 | 160 |
| 1985 | 223 |
| 1986 | 283 |
| 1987 | 314 |
| 1988 | 458 |
| 1989 | 472 |
| 1990 | 646 |
| 1991 | 751 |
| 1992 | 895 |
| 1993 | 1089 |
| 1994 | 939 |
| 1995 | 700 |
| 1996 | 443 |
| 1997 | 433 |
| 1998 | 617 |
| 1999 | 557 |
| 2000 | 432 |
| 2001 | 425 |
| 2002 | 369 |
| 2003 | 386 |
| 2004 | 373 |
| 2005 | 325 |
| 2006 | 359 |
| 2007 | 275 |
| 2008 | 266 |
| 2009 | 242 |
| 2010 | 227 |
| 2011 | 176 |
| 2012 | 147 |
| 2013 | 207 |
| 2014 | 175 |
| 2015 | 146 |
| 2016 | 176 |
| 2017 | 155 |
| 2018 | 95 |
| 2019 | 106 |
| 2020 | 98 |
| 2021 | 63 |
| 2022 | 38 |
| 2023 | 14 |
| 2024 | 22 |
| 2025 | 15 |