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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1958 | 1 |
| 1961 | 1 |
| 1962 | 4 |
| 1963 | 3 |
| 1964 | 2 |
| 1965 | 4 |
| 1967 | 1 |
| 1970 | 1 |
| 1972 | 1 |
| 1974 | 1 |
| 1978 | 1 |
| 1979 | 35 |
| 1980 | 98 |
| 1981 | 105 |
| 1982 | 117 |
| 1983 | 100 |
| 1984 | 108 |
| 1985 | 155 |
| 1986 | 144 |
| 1987 | 115 |
| 1988 | 115 |
| 1989 | 159 |
| 1990 | 150 |
| 1991 | 152 |
| 1992 | 163 |
| 1993 | 164 |
| 1994 | 197 |
| 1995 | 165 |
| 1996 | 208 |
| 1997 | 221 |
| 1998 | 180 |
| 1999 | 164 |
| 2000 | 194 |
| 2001 | 176 |
| 2002 | 159 |
| 2003 | 162 |
| 2004 | 176 |
| 2005 | 184 |
| 2006 | 189 |
| 2007 | 167 |
| 2008 | 176 |
| 2009 | 196 |
| 2010 | 223 |
| 2011 | 253 |
| 2012 | 267 |
| 2013 | 231 |
| 2014 | 273 |
| 2015 | 254 |
| 2016 | 239 |
| 2017 | 211 |
| 2018 | 209 |
| 2019 | 231 |
| 2020 | 242 |
| 2021 | 202 |
| 2022 | 123 |
| 2023 | 94 |
| 2024 | 36 |