condition	mean	min	max
0 h after light	17.87075	17.4002	18.3413
4 h after light	21.79155	20.269	23.3141
8 h after light	31.610149999999997	31.3346	31.8857
4 h after dark	34.723349999999996	33.7031	35.7436
8 h after dark	30.93935	30.3838	31.4949
12 h after dark	21.4334	19.6362	23.2306