Machine I	Machine II	Machine III	Machine IV
16.5	15.0	16.0	16.6
16.6	15.4	16.3	15.9
16.5	15.3	16.5	15.5
15.8	15.7	16.4	16.2
15.6	15.2	17.3	17.0
16.4	16.0	16.7	15.5
16.1	15.6	15.7	16.3