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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 3 |
| 1965 | 7 |
| 1966 | 47 |
| 1967 | 32 |
| 1968 | 25 |
| 1969 | 19 |
| 1970 | 40 |
| 1971 | 28 |
| 1972 | 59 |
| 1973 | 34 |
| 1974 | 24 |
| 1975 | 35 |
| 1976 | 42 |
| 1977 | 33 |
| 1978 | 10 |
| 1979 | 16 |
| 1980 | 15 |
| 1990 | 1 |
| 1992 | 1 |
| 1994 | 1 |
| 1996 | 2 |
| 1997 | 1 |
| 1998 | 617 |
| 1999 | 730 |
| 2000 | 970 |
| 2001 | 1441 |
| 2002 | 960 |
| 2003 | 1079 |
| 2004 | 1306 |
| 2005 | 1452 |
| 2006 | 1512 |
| 2007 | 1664 |
| 2008 | 1808 |
| 2009 | 1696 |
| 2010 | 1884 |
| 2011 | 2408 |
| 2012 | 2571 |
| 2013 | 2620 |
| 2014 | 2869 |
| 2015 | 3108 |
| 2016 | 3064 |
| 2017 | 3082 |
| 2018 | 3128 |
| 2019 | 3442 |
| 2020 | 3975 |
| 2021 | 3970 |
| 2022 | 3789 |
| 2023 | 4500 |
| 2024 | 2321 |