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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 2 |
| 1965 | 14 |
| 1966 | 35 |
| 1967 | 47 |
| 1968 | 51 |
| 1969 | 67 |
| 1970 | 58 |
| 1971 | 75 |
| 1972 | 47 |
| 1973 | 65 |
| 1974 | 67 |
| 1975 | 55 |
| 1976 | 48 |
| 1977 | 54 |
| 1978 | 57 |
| 1979 | 64 |
| 1980 | 76 |
| 1981 | 45 |
| 1982 | 75 |
| 1983 | 80 |
| 1984 | 80 |
| 1985 | 75 |
| 1986 | 103 |
| 1987 | 95 |
| 1988 | 102 |
| 1989 | 135 |
| 1990 | 180 |
| 1991 | 191 |
| 1992 | 240 |
| 1993 | 287 |
| 1994 | 249 |
| 1995 | 236 |
| 1996 | 241 |
| 1997 | 240 |
| 1998 | 214 |
| 1999 | 245 |
| 2000 | 289 |
| 2001 | 286 |
| 2002 | 325 |
| 2003 | 387 |
| 2004 | 490 |
| 2005 | 533 |
| 2006 | 556 |
| 2007 | 610 |
| 2008 | 697 |
| 2009 | 805 |
| 2010 | 907 |
| 2011 | 1096 |
| 2012 | 1164 |
| 2013 | 1177 |
| 2014 | 1165 |
| 2015 | 1292 |
| 2016 | 1267 |
| 2017 | 1276 |
| 2018 | 1194 |
| 2019 | 1338 |
| 2020 | 1440 |
| 2021 | 1425 |
| 2022 | 1201 |
| 2023 | 1041 |
| 2024 | 483 |