condition	mean	min	max
4 h after light	31.38375	30.8697	31.8978
8 h after light	26.0961	24.9515	27.2407
12 h after light	50.10065	48.0935	52.1078
4 h after dark	69.9222	68.3874	71.457
8 h after dark	69.6388	69.3957	69.8819
12 h after dark	52.37475	52.3142	52.4353