condition	mean	min	max
0 h after light	18.82215	18.5972	19.0471
4 h after light	12.248000000000001	11.942	12.554
8 h after light	11.088750000000001	10.6134	11.5641
4 h after dark	11.8404	10.2589	13.4219
8 h after dark	13.9084	13.5065	14.3103
12 h after dark	17.26235	13.943	20.5817