condition	mean	min	max
4 h after light	15.58275	13.2855	17.88
8 h after light	18.71985	17.3163	20.1234
12 h after light	23.0298	20.3027	25.7569
4 h after dark	35.5386	31.3022	39.775
8 h after dark	24.2218	24.1495	24.2941
12 h after dark	22.18365	21.8697	22.4976