condition	mean	min	max
4 h after light	6.18599	5.37165	7.00033
8 h after light	2.1094600000000003	2.08637	2.13255
12 h after light	3.2911	2.35218	4.23002
4 h after dark	15.0484	10.3513	19.7455
8 h after dark	11.19185	11.0601	11.3236
12 h after dark	8.42098	7.18476	9.6572