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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 2 |
| 1963 | 1 |
| 1966 | 2 |
| 1967 | 1 |
| 1968 | 3 |
| 1969 | 3 |
| 1970 | 9 |
| 1971 | 2 |
| 1972 | 7 |
| 1973 | 4 |
| 1974 | 12 |
| 1975 | 41 |
| 1976 | 62 |
| 1977 | 47 |
| 1978 | 58 |
| 1979 | 47 |
| 1980 | 60 |
| 1981 | 64 |
| 1982 | 66 |
| 1983 | 76 |
| 1984 | 75 |
| 1985 | 81 |
| 1986 | 73 |
| 1987 | 75 |
| 1988 | 100 |
| 1989 | 210 |
| 1990 | 506 |
| 1991 | 663 |
| 1992 | 767 |
| 1993 | 1072 |
| 1994 | 1222 |
| 1995 | 1439 |
| 1996 | 1561 |
| 1997 | 1664 |
| 1998 | 2046 |
| 1999 | 2335 |
| 2000 | 2014 |
| 2001 | 1967 |
| 2002 | 2101 |
| 2003 | 2360 |
| 2004 | 3161 |
| 2005 | 3758 |
| 2006 | 4270 |
| 2007 | 5111 |
| 2008 | 5431 |
| 2009 | 5951 |
| 2010 | 6535 |
| 2011 | 6616 |
| 2012 | 7092 |
| 2013 | 7384 |
| 2014 | 7607 |
| 2015 | 7859 |
| 2016 | 7748 |
| 2017 | 7894 |
| 2018 | 8174 |
| 2019 | 7773 |
| 2020 | 7178 |
| 2021 | 5136 |
| 2022 | 3454 |
| 2023 | 2785 |
| 2024 | 6695 |
| 2025 | 2621 |