Table1
Frequency of snapping (kireru) X frequency of getting frustrated (mukatsuku)
(%)

Snap

Almost every day Several times a week Once or twice a month Several times so far None
Frustrated Almost every day 16.6 24.5 12.0 34.0 12.9
Several times a week 0.6 17.8 19.8 48.4 13.4
Several times (once or twice) a month 0.0 2.3 16.0 61.1 20.6
Several times a year/none 0.5 1.0 4.4 56.2 37.9