condition	mean	min	max
4 h after light	18.2057	16.4307	19.9807
8 h after light	17.18115	16.9761	17.3862
12 h after light	20.633650000000003	20.4446	20.8227
4 h after dark	21.9157	21.066	23.1502
8 h after dark	24.380666666666666	22.6957	26.5108
12 h after dark	21.438233333333333	19.137	25.639