condition	mean	min	max
4 h after light	16.6973	15.711	17.6836
8 h after light	14.290600000000001	13.9305	14.6507
12 h after light	16.010849999999998	15.4158	16.6059
4 h after dark	19.6067	19.3208	19.8926
8 h after dark	20.13895	19.6612	20.6167
12 h after dark	19.7703	19.6536	19.887