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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1959 | 1 |
| 1967 | 1 |
| 1968 | 9 |
| 1970 | 5 |
| 1971 | 1 |
| 1972 | 1 |
| 1973 | 2 |
| 1974 | 1 |
| 1975 | 1 |
| 1980 | 1 |
| 1981 | 2 |
| 1983 | 14 |
| 1984 | 7 |
| 1985 | 2 |
| 1986 | 2 |
| 1987 | 2 |
| 1988 | 4 |
| 1989 | 3 |
| 1990 | 3 |
| 1991 | 3 |
| 1993 | 5 |
| 1994 | 6 |
| 1995 | 6 |
| 1996 | 6 |
| 1997 | 5 |
| 1998 | 16 |
| 1999 | 25 |
| 2000 | 39 |
| 2001 | 35 |
| 2002 | 40 |
| 2003 | 31 |
| 2004 | 44 |
| 2005 | 59 |
| 2006 | 57 |
| 2007 | 50 |
| 2008 | 72 |
| 2009 | 92 |
| 2010 | 84 |
| 2011 | 113 |
| 2012 | 112 |
| 2013 | 122 |
| 2014 | 140 |
| 2015 | 126 |
| 2016 | 129 |
| 2017 | 139 |
| 2018 | 130 |
| 2019 | 136 |
| 2020 | 128 |
| 2021 | 146 |
| 2022 | 151 |
| 2023 | 137 |
| 2024 | 125 |