condition	mean	min	max
4 h after light	3.984745	3.28669	4.6828
8 h after light	1.38082	1.02418	1.73746
12 h after light	1.6218	1.58441	1.65919
4 h after dark	1.57866	1.53063	1.62669
8 h after dark	2.653835	2.48375	2.82392
12 h after dark	3.07524	2.48262	3.66786