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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1961 | 1 |
| 1964 | 1 |
| 1965 | 1 |
| 1967 | 1 |
| 1969 | 2 |
| 1972 | 2 |
| 1973 | 2 |
| 1974 | 1 |
| 1975 | 3 |
| 1976 | 6 |
| 1977 | 4 |
| 1978 | 9 |
| 1979 | 5 |
| 1980 | 18 |
| 1981 | 29 |
| 1982 | 22 |
| 1983 | 25 |
| 1984 | 31 |
| 1985 | 26 |
| 1986 | 29 |
| 1987 | 44 |
| 1988 | 30 |
| 1989 | 38 |
| 1990 | 40 |
| 1991 | 41 |
| 1992 | 52 |
| 1993 | 76 |
| 1994 | 97 |
| 1995 | 96 |
| 1996 | 103 |
| 1997 | 101 |
| 1998 | 142 |
| 1999 | 127 |
| 2000 | 150 |
| 2001 | 154 |
| 2002 | 151 |
| 2003 | 172 |
| 2004 | 189 |
| 2005 | 249 |
| 2006 | 247 |
| 2007 | 318 |
| 2008 | 378 |
| 2009 | 361 |
| 2010 | 447 |
| 2011 | 520 |
| 2012 | 633 |
| 2013 | 700 |
| 2014 | 771 |
| 2015 | 902 |
| 2016 | 907 |
| 2017 | 1017 |
| 2018 | 1217 |
| 2019 | 1453 |
| 2020 | 1844 |
| 2021 | 2177 |
| 2022 | 2159 |
| 2023 | 1036 |