A sample of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are listed below. The values are matched so that 10 subjects each have a systolic and diastolic measurement. Find the coefficient of variation for each of the two samples; then compare the variation. Systolic 116 128 158 98 158 123 117 138 124 120
Diastolic 78 78 74 54 88 87 59 64 74 82

The coefficient of variation for the systolic measurements is
___%.