For 55% of respondents, 9 to 10 a.m. is the earliest class they will willingly take, and 29% will not start before 11. Only 5% would sign up for an 8 a.m.
Bar chart of the earliest class respondents will willingly sign up for: 5% 8 a.m., 55% 9 to 10 a.m., 29% 11 a.m., 5% noon or later, 6% whatever fits.