condition	mean	min	max
4 h after light	7.0358	6.7479	7.3237
8 h after light	5.29603	4.44649	6.14557
12 h after light	7.7581	7.50568	8.01052
4 h after dark	14.23675	13.7693	14.7042
8 h after dark	12.8106	12.6599	12.9613
12 h after dark	10.34721	9.45932	11.2351