condition	mean	min	max
0 h after light	18.7826	17.6835	19.8817
4 h after light	12.638000000000002	11.6651	13.6109
8 h after light	8.693365	7.80359	9.58314
4 h after dark	14.147	13.9939	14.3001
8 h after dark	17.5489	16.8047	18.2931
12 h after dark	16.083750000000002	16.0323	16.1352