condition	mean	min	max
4 h after light	17.209699999999998	15.8274	18.592
8 h after light	25.01425	22.5648	27.4637
12 h after light	18.7683	18.1025	19.4341
4 h after dark	17.175366666666665	17.0275	17.2695
8 h after dark	14.962333333333333	14.3615	15.3753
12 h after dark	16.7466	14.8951	19.5057