condition	mean	min	max
4 h after light	15.801549999999999	14.4488	17.1543
8 h after light	13.34055	13.0649	13.6162
12 h after light	15.74645	15.2657	16.2272
4 h after dark	21.081033333333334	20.58	21.4208
8 h after dark	26.252166666666668	24.4139	28.4231
12 h after dark	17.9073	16.3511	19.7992