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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 1 |
| 1961 | 1 |
| 1963 | 1 |
| 1964 | 2 |
| 1965 | 47 |
| 1966 | 82 |
| 1967 | 98 |
| 1968 | 112 |
| 1969 | 133 |
| 1970 | 134 |
| 1971 | 155 |
| 1972 | 193 |
| 1973 | 174 |
| 1974 | 188 |
| 1975 | 240 |
| 1976 | 230 |
| 1977 | 291 |
| 1978 | 314 |
| 1979 | 351 |
| 1980 | 393 |
| 1981 | 417 |
| 1982 | 390 |
| 1983 | 435 |
| 1984 | 402 |
| 1985 | 451 |
| 1986 | 428 |
| 1987 | 545 |
| 1988 | 713 |
| 1989 | 696 |
| 1990 | 744 |
| 1991 | 639 |
| 1992 | 703 |
| 1993 | 723 |
| 1994 | 830 |
| 1995 | 927 |
| 1996 | 985 |
| 1997 | 923 |
| 1998 | 927 |
| 1999 | 936 |
| 2000 | 1071 |
| 2001 | 1033 |
| 2002 | 1185 |
| 2003 | 1094 |
| 2004 | 1075 |
| 2005 | 1080 |
| 2006 | 1260 |
| 2007 | 1316 |
| 2008 | 1300 |
| 2009 | 1295 |
| 2010 | 1351 |
| 2011 | 1438 |
| 2012 | 1376 |
| 2013 | 1352 |
| 2014 | 1261 |
| 2015 | 1133 |
| 2016 | 1057 |
| 2017 | 977 |
| 2018 | 906 |
| 2019 | 895 |
| 2020 | 731 |
| 2021 | 600 |
| 2022 | 339 |
| 2023 | 304 |
| 2024 | 119 |