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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 1 |
| 1968 | 3 |
| 1969 | 1 |
| 1970 | 3 |
| 1971 | 3 |
| 1972 | 4 |
| 1973 | 3 |
| 1975 | 4 |
| 1976 | 5 |
| 1977 | 4 |
| 1978 | 3 |
| 1979 | 4 |
| 1980 | 5 |
| 1981 | 8 |
| 1982 | 22 |
| 1983 | 55 |
| 1984 | 96 |
| 1985 | 126 |
| 1986 | 154 |
| 1987 | 215 |
| 1988 | 199 |
| 1989 | 219 |
| 1990 | 241 |
| 1991 | 239 |
| 1992 | 293 |
| 1993 | 299 |
| 1994 | 290 |
| 1995 | 268 |
| 1996 | 253 |
| 1997 | 259 |
| 1998 | 247 |
| 1999 | 237 |
| 2000 | 228 |
| 2001 | 243 |
| 2002 | 242 |
| 2003 | 240 |
| 2004 | 198 |
| 2005 | 221 |
| 2006 | 211 |
| 2007 | 224 |
| 2008 | 236 |
| 2009 | 265 |
| 2010 | 215 |
| 2011 | 245 |
| 2012 | 236 |
| 2013 | 220 |
| 2014 | 282 |
| 2015 | 271 |
| 2016 | 262 |
| 2017 | 240 |
| 2018 | 244 |
| 2019 | 235 |
| 2020 | 218 |
| 2021 | 147 |
| 2022 | 117 |
| 2023 | 141 |
| 2024 | 44 |