condition	mean	min	max
4 h after light	15.585426	15.530746	15.640106
8 h after light	25.5614135	21.270921	29.851906
12 h after light	19.889644	16.772794	23.006494
4 h after dark	34.711830500000005	21.89936	47.524301
8 h after dark	30.443904500000002	14.112714	46.775095
12 h after dark	19.070267	19.070267	19.070267