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 ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,,