condition	mean	min	max
0 h after light	12.45165	11.9576	12.9457
4 h after light	17.29045	14.9647	19.6162
8 h after light	19.3916	16.7775	22.0057
4 h after dark	21.325499999999998	20.3505	22.3005
8 h after dark	17.24475	16.748	17.7415
12 h after dark	13.24195	12.4616	14.0223