condition	mean	min	max
4 h after light	13.3479	11.5994	15.0964
8 h after light	18.3044	18.1628	18.446
12 h after light	22.80955	20.9083	24.7108
4 h after dark	31.1537	29.1784	33.129
8 h after dark	22.7207	21.6897	23.7517
12 h after dark	17.21015	16.7941	17.6262