condition	mean	min	max
4 h after light	6.7571	6.17135	7.34285
8 h after light	7.041755	6.67613	7.40738
12 h after light	6.705575	6.14468	7.26647
4 h after dark	9.135613333333334	8.28297	9.6528
8 h after dark	7.06417	7.04273	7.09534
12 h after dark	7.1249633333333335	6.57346	7.54505