condition	mean	min	max
4 h after light	8.771335	8.23356	9.30911
8 h after light	5.78007	5.6967	5.86344
12 h after light	5.9435	5.3904	6.4966
4 h after dark	6.4645	6.05584	6.75149
8 h after dark	5.151113333333333	4.76736	5.50945
12 h after dark	7.867413333333333	7.64356	8.09055