participant number,Change,Sustain,ratio,total interview time (sec)
1,14,3,4.666666667,555
2,16,5,3.2,547
3,11,1,11,403
4,19,1,19,582
5,14,7,2,673
6,21,3,7,888
8,15,1,15,413
9,11,8,1.375,723
10,20,4,5,584
12,12,0,,337
13,21,2,10.5,967
14,16,2,8,560
15,13,2,6.5,496
16,17,4,4.25,791
17,18,8,2.25,804
18,18,4,4.5,761
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