Construct the cumulative frequency distribution for the given data.

Age (years) of Best Actress when award was won	Frequency
20-29	2626
30-39	3535
40-49	1313
50-59	33
60-69	66
70-79	22
80-89	2

Age (years) of Best Actress when award was won	Cumulative Frequency
Less than 30	enter your response here
Less than 40	enter your response here
Less than 50	enter your response here
Less than 60	enter your response here
Less than 70	enter your response here
Less than 80	enter your response here
Less than 90	enter your response here