condition	mean	min	max
4 h after light	7.2	7.2	7.2
8 h after light	25.0	22.7	27.3
12 h after light	46.7	16.7	76.7
4 h after dark	29.8	5.0	54.6
8 h after dark	31.4	19.5	43.3
12 h after dark	32.35	10.2	54.5