condition	mean	min	max
4 h after light	21.8429	21.4995	22.1863
8 h after light	13.9511	13.7058	14.1964
12 h after light	21.7965	20.6703	22.9227
4 h after dark	30.8646	29.0494	32.6798
8 h after dark	29.0163	28.4473	29.5853
12 h after dark	25.5187	25.4885	25.5489