condition	mean	min	max
4 h after light	8.568945	7.90442	9.23347
8 h after light	5.88184	5.28067	6.48301
12 h after light	12.0045	10.9311	13.0779
4 h after dark	28.127000000000002	24.7804	31.4736
8 h after dark	39.30135	37.9557	40.647
12 h after dark	20.9617	19.1586	22.7648