condition	mean	min	max
4 h after light	17.0824	15.429	18.7358
8 h after light	19.689	18.7288	20.6492
12 h after light	20.38035	19.1126	21.6481
4 h after dark	24.582533333333334	23.4769	26.2708
8 h after dark	27.403466666666667	26.2917	28.3848
12 h after dark	21.0366	19.3787	22.7532