condition	mean	min	max
0 h after light	23.225450000000002	23.0415	23.4094
4 h after light	12.479800000000001	11.3533	13.6063
8 h after light	16.40235	15.7128	17.0919
4 h after dark	21.2745	20.562	21.987
8 h after dark	20.3131	18.3763	22.2499
12 h after dark	19.351750000000003	17.7757	20.9278