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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 1 |
| 1950 | 1 |
| 1964 | 3 |
| 1965 | 13 |
| 1966 | 54 |
| 1967 | 75 |
| 1968 | 109 |
| 1969 | 89 |
| 1970 | 102 |
| 1971 | 120 |
| 1972 | 145 |
| 1973 | 161 |
| 1974 | 339 |
| 1975 | 459 |
| 1976 | 423 |
| 1977 | 502 |
| 1978 | 504 |
| 1979 | 601 |
| 1980 | 632 |
| 1981 | 590 |
| 1982 | 719 |
| 1983 | 777 |
| 1984 | 833 |
| 1985 | 921 |
| 1986 | 887 |
| 1987 | 847 |
| 1988 | 808 |
| 1989 | 762 |
| 1990 | 899 |
| 1991 | 927 |
| 1992 | 873 |
| 1993 | 983 |
| 1994 | 1038 |
| 1995 | 1081 |
| 1996 | 1158 |
| 1997 | 1175 |
| 1998 | 1171 |
| 1999 | 1223 |
| 2000 | 1466 |
| 2001 | 1467 |
| 2002 | 1517 |
| 2003 | 1420 |
| 2004 | 1424 |
| 2005 | 1636 |
| 2006 | 1705 |
| 2007 | 1791 |
| 2008 | 1842 |
| 2009 | 1878 |
| 2010 | 1992 |
| 2011 | 2114 |
| 2012 | 2049 |
| 2013 | 2193 |
| 2014 | 2222 |
| 2015 | 2100 |
| 2016 | 2008 |
| 2017 | 1850 |
| 2018 | 1840 |
| 2019 | 1634 |
| 2020 | 1384 |
| 2021 | 1064 |
| 2022 | 164 |
| 2023 | 34 |
| 2024 | 82 |