condition	mean	min	max
4 h after light	17.5272025	16.610958	18.443447
8 h after light	15.2223765	14.956176	15.488577
12 h after light	14.921572999999999	13.886714	15.956432
4 h after dark	15.689672999999999	15.422914	15.956432
8 h after dark	15.0934185	14.126334	16.060503
12 h after dark	15.062134	15.062134	15.062134