condition	mean	min	max
3 h after light	19.732066666666668	18.8042	20.661
6 h after light	17.260099999999998	13.9545	20.8254
9 h after light	20.010233333333332	17.1195	24.244
12 h after light	20.2929	16.0141	24.0329
3 h after dark	27.5366	25.9674	29.831
6 h after dark	26.6114	22.1929	29.6475
9 h after dark	21.712266666666665	20.4198	22.8207
12 h after dark	18.69945	18.3038	19.0951