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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1962 | 1 |
| 1963 | 1 |
| 1966 | 2 |
| 1971 | 1 |
| 1972 | 3 |
| 1973 | 3 |
| 1974 | 5 |
| 1975 | 31 |
| 1976 | 28 |
| 1977 | 24 |
| 1978 | 21 |
| 1979 | 19 |
| 1980 | 36 |
| 1981 | 30 |
| 1982 | 30 |
| 1983 | 19 |
| 1984 | 39 |
| 1985 | 36 |
| 1986 | 41 |
| 1987 | 42 |
| 1988 | 40 |
| 1989 | 48 |
| 1990 | 52 |
| 1991 | 57 |
| 1992 | 56 |
| 1993 | 51 |
| 1994 | 54 |
| 1995 | 60 |
| 1996 | 61 |
| 1997 | 64 |
| 1998 | 57 |
| 1999 | 70 |
| 2000 | 66 |
| 2001 | 59 |
| 2002 | 77 |
| 2003 | 85 |
| 2004 | 84 |
| 2005 | 75 |
| 2006 | 114 |
| 2007 | 111 |
| 2008 | 109 |
| 2009 | 131 |
| 2010 | 142 |
| 2011 | 176 |
| 2012 | 197 |
| 2013 | 170 |
| 2014 | 176 |
| 2015 | 191 |
| 2016 | 145 |
| 2017 | 120 |
| 2018 | 175 |
| 2019 | 160 |
| 2020 | 193 |
| 2021 | 208 |
| 2022 | 185 |
| 2023 | 167 |
| 2024 | 34 |