condition	mean	min	max
4 h after light	15.4153005	14.916855	15.913746
8 h after light	15.8110745	14.554096	17.068053
12 h after light	15.144311	12.888331	17.400291
4 h after dark	12.351274	11.647767	13.054781
8 h after dark	11.631419000000001	11.555183	11.707655
12 h after dark	12.685265	12.685265	12.685265