condition	mean	min	max
0 h after light	13.657399999999999	13.5948	13.72
4 h after light	9.508815	7.79823	11.2194
8 h after light	6.617875	6.56057	6.67518
4 h after dark	17.57905	12.1138	23.0443
8 h after dark	9.854705	8.60131	11.1081
12 h after dark	12.5258	11.9675	13.0841