4XCO2   CONTROL
    0       3.07      2.43
    1      26.83     49.44
    2       1.62     -0.16
    3      35.66     55.50
    4       1.01     -1.01
    5      31.73     28.78
    6       1.39     -0.27
    7      30.60     36.90
    8       2.60      0.56
    9      27.43     52.21
   10       1.32     -0.18
   11      26.08     43.57
   12      84.01     84.93