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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 1 |
| 1966 | 1 |
| 1967 | 2 |
| 1970 | 2 |
| 1971 | 1 |
| 1973 | 3 |
| 1974 | 1 |
| 1975 | 3 |
| 1976 | 2 |
| 1977 | 157 |
| 1978 | 516 |
| 1979 | 601 |
| 1980 | 788 |
| 1981 | 790 |
| 1982 | 761 |
| 1983 | 728 |
| 1984 | 755 |
| 1985 | 748 |
| 1986 | 714 |
| 1987 | 569 |
| 1988 | 475 |
| 1989 | 492 |
| 1990 | 554 |
| 1991 | 430 |
| 1992 | 410 |
| 1993 | 386 |
| 1994 | 321 |
| 1995 | 289 |
| 1996 | 275 |
| 1997 | 254 |
| 1998 | 230 |
| 1999 | 247 |
| 2000 | 205 |
| 2001 | 211 |
| 2002 | 182 |
| 2003 | 210 |
| 2004 | 183 |
| 2005 | 161 |
| 2006 | 207 |
| 2007 | 191 |
| 2008 | 179 |
| 2009 | 186 |
| 2010 | 129 |
| 2011 | 139 |
| 2012 | 122 |
| 2013 | 126 |
| 2014 | 125 |
| 2015 | 132 |
| 2016 | 121 |
| 2017 | 83 |
| 2018 | 67 |
| 2019 | 83 |
| 2020 | 52 |
| 2021 | 51 |
| 2022 | 7 |
| 2024 | 1 |