condition	mean	min	max
4 h after light	7.423255	6.50403	8.34248
8 h after light	7.98332	7.75919	8.20745
12 h after light	6.8889949999999995	5.67044	8.10755
4 h after dark	11.35295	11.11	11.5959
8 h after dark	10.7695	10.2398	11.2992
12 h after dark	8.918569999999999	7.92083	9.91631