condition	mean	min	max
4 h after light	17.64721	17.201079	18.093341
8 h after light	22.9292005	21.050751	24.80765
12 h after light	15.26417	13.366515	17.161825
4 h after dark	16.6363105	15.174566	18.098055
8 h after dark	14.6852255	14.074292	15.296159
12 h after dark	16.622429	16.622429	16.622429