The number of families who used the Minneapolis YWCA day care service was recorded over a 30-day period. The results are as follows:

62	48	68	40	53	57	47	39	58	52
44	55	63	33	54	22	47	27	41	26
49	59	13	51	56	49	25	46	41	57

Construct a cumulative frequency distribution of this data.

Class	Cumulative Frequency
0 up to 15
up to
up to
up to
up to