condition	mean	min	max
4 h after light	24.7	24.7	24.7
8 h after light	50.2	38.0	62.4
12 h after light	46.5	41.0	52.0
4 h after dark	3.7	2.1	5.3
8 h after dark	18.0	4.7	31.3
12 h after dark	5.9	4.5	7.3