condition	mean	min	max
0 h after light	9.060155	8.80786	9.31245
4 h after light	11.15145	11.001	11.3019
8 h after light	18.71285	18.6467	18.779
4 h after dark	18.88865	15.1526	22.6247
8 h after dark	13.6768	12.2684	15.0852
12 h after dark	10.30866	9.49982	11.1175