condition	mean	min	max
4 h after light	6.82207	6.62064	7.0235
8 h after light	11.04875	10.5744	11.5231
12 h after light	13.31235	12.3359	14.2888
4 h after dark	28.9776	28.0384	29.9168
8 h after dark	29.5529	28.5888	30.517
12 h after dark	17.39215	16.9325	17.8518