condition	mean	min	max
4 h after light	40.68385	36.2904	45.0773
8 h after light	31.869	29.9994	33.7386
12 h after light	33.9336	31.3448	36.5224
4 h after dark	63.182	58.0177	66.0429
8 h after dark	61.2911	60.1828	62.8156
12 h after dark	59.53463333333333	58.7457	60.1217