condition	mean	min	max
4 h after light	7.672893333333334	7.4037	7.81652
8 h after light	7.76178	7.69313	7.8818399999999995
12 h after light	7.886063333333333	7.706919999999999	8.096960000000001
4 h after dark	7.6683433333333335	7.56807	7.791110000000001
8 h after dark	7.791423333333333	7.67895	7.953869999999999
12 h after dark	7.80807	7.479	8.02614