condition	mean	min	max
0 h after light	21.423000000000002	19.127	23.719
4 h after light	23.70235	20.1515	27.2532
8 h after light	9.49023	9.16122	9.81924
4 h after dark	8.817995	7.26939	10.3666
8 h after dark	20.7964	20.7923	20.8005
12 h after dark	24.6079	22.9247	26.2911