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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 1 |
| 1959 | 1 |
| 1965 | 4 |
| 1969 | 2 |
| 1971 | 3 |
| 1972 | 6 |
| 1973 | 57 |
| 1974 | 147 |
| 1975 | 127 |
| 1976 | 81 |
| 1977 | 100 |
| 1978 | 105 |
| 1979 | 98 |
| 1980 | 106 |
| 1981 | 137 |
| 1982 | 109 |
| 1983 | 143 |
| 1984 | 190 |
| 1985 | 229 |
| 1986 | 249 |
| 1987 | 312 |
| 1988 | 353 |
| 1989 | 422 |
| 1990 | 516 |
| 1991 | 625 |
| 1992 | 671 |
| 1993 | 717 |
| 1994 | 870 |
| 1995 | 949 |
| 1996 | 932 |
| 1997 | 1049 |
| 1998 | 1098 |
| 1999 | 1003 |
| 2000 | 875 |
| 2001 | 871 |
| 2002 | 845 |
| 2003 | 969 |
| 2004 | 1145 |
| 2005 | 1334 |
| 2006 | 1346 |
| 2007 | 1330 |
| 2008 | 1431 |
| 2009 | 1673 |
| 2010 | 1894 |
| 2011 | 2148 |
| 2012 | 2422 |
| 2013 | 2517 |
| 2014 | 2396 |
| 2015 | 2365 |
| 2016 | 2210 |
| 2017 | 2223 |
| 2018 | 2158 |
| 2019 | 2001 |
| 2020 | 1770 |
| 2021 | 1280 |
| 2022 | 734 |
| 2023 | 754 |
| 2024 | 1853 |
| 2025 | 1282 |