Pay attention to the resistance of 1975-1985, if it cannot break through, it will test 1960-1950-1930.
If 1985 resistance is broken, 2000-2010-2020 will be tested.
Pay attention to the support of 1940-1930, if it cannot fall below, it will test 1955-1965-1985.
A break below 1930 support would test 1920-1910-1900.