condition	mean	min	max
0 h after light	3.7589799999999998	3.29519	4.22277
4 h after light	8.186215	6.20493	10.1675
8 h after light	11.253605	7.51111	14.9961
4 h after dark	17.82535	17.5496	18.1011
8 h after dark	11.304965	9.67493	12.935
12 h after dark	4.7877600000000005	3.01856	6.55696