condition	mean	min	max
0 h after light	18.799500000000002	18.1683	19.4307
4 h after light	9.30674	8.54408	10.0694
8 h after light	19.1115	17.8684	20.3546
4 h after dark	32.96225	28.8243	37.1002
8 h after dark	52.856899999999996	49.4454	56.2684
12 h after dark	23.229100000000003	22.7897	23.6685