Possibility of saving

Confidence intervals

Never

7.2% < 14.0 < 20.8%

Rarely

9.6% < 17.0 < 24.4%

Often

46.3% < 56.0 < 65.7%

Very often

0.0% < 2.0 < 4.7%

Always

4.9% < 11.0 < 17.1%