condition	mean	min	max
0 h after light	9.023195000000001	8.45312	9.59327
4 h after light	6.23013	5.74857	6.71169
8 h after light	7.695975	7.61886	7.77309
4 h after dark	9.048314999999999	8.54975	9.54688
8 h after dark	7.889855000000001	7.78788	7.99183
12 h after dark	7.54078	6.53268	8.54888