condition	mean	min	max
4 h after light	4.526235	4.15964	4.89283
8 h after light	6.98132	6.30761	7.65503
12 h after light	12.16825	11.689	12.6475
4 h after dark	16.154433333333333	15.3097	17.3967
8 h after dark	14.142633333333333	13.032	14.9012
12 h after dark	8.79949	7.90258	10.3383