condition	mean	min	max
4 h after light	18.63355	15.3763	21.8908
8 h after light	17.3893	17.3376	17.441
12 h after light	13.3658	11.5827	15.1489
4 h after dark	16.9574	14.4294	19.4854
8 h after dark	20.63165	19.3	21.9633
12 h after dark	25.23095	22.6497	27.8122