condition	mean	min	max
4 h after light	22.1438	18.9445	25.3431
8 h after light	18.1125	17.2558	18.9692
12 h after light	24.1538	23.8108	24.4968
4 h after dark	29.3906	28.4026	30.7282
8 h after dark	32.5244	31.8189	32.9545
12 h after dark	28.151433333333333	25.8373	29.5811