condition	mean	min	max
4 h after light	9.23635	8.8584	9.6143
8 h after light	11.5159	11.1835	11.8483
12 h after light	57.3117	50.8969	63.7265
4 h after dark	76.42525	75.7871	77.0634
8 h after dark	27.5167	26.8468	28.1866
12 h after dark	18.14285	18.0594	18.2263