condition	mean	min	max
4 h after light	9.52166	5.70464	15.5929
8 h after light	7.510736666666666	3.02314	11.375
12 h after light	11.5174	8.2672	15.4407
4 h after dark	19.009366666666665	16.5567	20.9853
8 h after dark	23.8337	22.3997	24.793
12 h after dark	20.494	18.0392	21.7895