Source,MeanC,SDC,MeanN,SDN
A,0.3,0.2,1.9,0.1
B,0.3,0.2,1.9,0.1
M,0.3,0.2,1.9,0.1
O,0.3,0.2,1.9,0.1
T,0.3,0.2,1.9,0.1