condition	mean	min	max
0 h after light	8.171045	7.3506	8.99149
4 h after light	6.176985	4.57267	7.7813
8 h after light	7.6725200000000005	6.69484	8.6502
4 h after dark	21.0054	16.9369	25.0739
8 h after dark	12.43525	12.4213	12.4492
12 h after dark	8.155235000000001	6.18167	10.1288