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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 1 |
| 1956 | 6 |
| 1957 | 5 |
| 1958 | 3 |
| 1959 | 2 |
| 1964 | 4 |
| 1965 | 18 |
| 1966 | 61 |
| 1967 | 91 |
| 1968 | 135 |
| 1969 | 147 |
| 1970 | 150 |
| 1971 | 261 |
| 1972 | 257 |
| 1973 | 236 |
| 1974 | 256 |
| 1975 | 273 |
| 1976 | 213 |
| 1977 | 226 |
| 1978 | 171 |
| 1979 | 182 |
| 1980 | 163 |
| 1981 | 192 |
| 1982 | 131 |
| 1983 | 138 |
| 1984 | 146 |
| 1985 | 161 |
| 1986 | 130 |
| 1987 | 202 |
| 1988 | 168 |
| 1989 | 171 |
| 1990 | 128 |
| 1991 | 181 |
| 1992 | 115 |
| 1993 | 150 |
| 1994 | 126 |
| 1995 | 131 |
| 1996 | 198 |
| 1997 | 206 |
| 1998 | 262 |
| 1999 | 285 |
| 2000 | 427 |
| 2001 | 545 |
| 2002 | 539 |
| 2003 | 520 |
| 2004 | 597 |
| 2005 | 654 |
| 2006 | 696 |
| 2007 | 730 |
| 2008 | 723 |
| 2009 | 719 |
| 2010 | 736 |
| 2011 | 843 |
| 2012 | 907 |
| 2013 | 897 |
| 2014 | 947 |
| 2015 | 941 |
| 2016 | 937 |
| 2017 | 817 |
| 2018 | 910 |
| 2019 | 893 |
| 2020 | 1024 |
| 2021 | 1171 |
| 2022 | 1382 |
| 2023 | 1129 |
| 2024 | 410 |