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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 2 |
| 1965 | 66 |
| 1966 | 124 |
| 1967 | 143 |
| 1968 | 166 |
| 1969 | 187 |
| 1970 | 166 |
| 1971 | 249 |
| 1972 | 192 |
| 1973 | 274 |
| 1974 | 275 |
| 1975 | 286 |
| 1976 | 334 |
| 1977 | 351 |
| 1978 | 393 |
| 1979 | 393 |
| 1980 | 402 |
| 1981 | 329 |
| 1982 | 270 |
| 1983 | 298 |
| 1984 | 303 |
| 1985 | 383 |
| 1986 | 530 |
| 1987 | 636 |
| 1988 | 739 |
| 1989 | 821 |
| 1990 | 799 |
| 1991 | 851 |
| 1992 | 901 |
| 1993 | 968 |
| 1994 | 865 |
| 1995 | 824 |
| 1996 | 929 |
| 1997 | 926 |
| 1998 | 1016 |
| 1999 | 1120 |
| 2000 | 1052 |
| 2001 | 1109 |
| 2002 | 1126 |
| 2003 | 1157 |
| 2004 | 1381 |
| 2005 | 1440 |
| 2006 | 1744 |
| 2007 | 1905 |
| 2008 | 1981 |
| 2009 | 2244 |
| 2010 | 2280 |
| 2011 | 2520 |
| 2012 | 2848 |
| 2013 | 3006 |
| 2014 | 3202 |
| 2015 | 3244 |
| 2016 | 3134 |
| 2017 | 3243 |
| 2018 | 3381 |
| 2019 | 3222 |
| 2020 | 2858 |
| 2021 | 2098 |
| 2022 | 1055 |
| 2023 | 886 |
| 2024 | 583 |