condition	mean	min	max
4 h after light	7.76091	6.63997	8.88185
8 h after light	2.963455	2.77247	3.15444
12 h after light	251.638	248.645	254.631
4 h after dark	518.1565	488.596	547.717
8 h after dark	226.29	223.642	228.938
12 h after dark	37.26349999999999	34.5759	39.9511