condition	mean	min	max
4 h after light	6.616153333333333	6.50595	6.71327
8 h after light	6.452023333333334	6.307840000000001	6.62295
12 h after light	6.76363	6.648910000000001	6.871239999999999
4 h after dark	6.488873333333333	6.29777	6.61943
8 h after dark	6.577343333333333	6.42414	6.79953
12 h after dark	6.42926	6.23548	6.5399199999999995