condition	mean	min	max
4 h after light	3.0417	2.80654	3.27686
8 h after light	4.233895	4.19199	4.2758
12 h after light	5.07882	4.79901	5.35863
4 h after dark	6.368905	6.23433	6.50348
8 h after dark	5.083535	4.91966	5.24741
12 h after dark	4.202765	3.94446	4.46107