condition	mean	min	max
0 h after light	27.063049999999997	26.2657	27.8604
4 h after light	17.69695	17.3171	18.0768
8 h after light	8.22517	7.6429	8.80744
4 h after dark	17.07535	15.0311	19.1196
8 h after dark	17.7714	16.5726	18.9702
12 h after dark	22.86225	20.7285	24.996