condition	mean	min	max
0 h after light	17.49905	17.431	17.5671
2 h after light	7.9976	7.07846	8.91674
4 h after light	6.461645	5.6525	7.27079
8 h after light	11.6557	9.5753	13.7361
12 h after light	15.92485	13.9704	17.8793
2 h after dark	16.96005	15.6545	18.2656
4 h after dark	16.6599	14.4276	18.8922
8 h after dark	21.49125	20.8573	22.1252
12 h after dark	13.53025	10.6889	16.3716