(3.1)(2.2)(2.0)(2.0)(2.0)(2.0)(2.0)(2.0)(1.9)(1.9)(2.0)(1.9)(1.9)(1.8)(1.8)(1.7)(1.9)(2.0)(1.9)(1.8)-------------------------min: 1.7430782318115max: 3.054141998291avg: 1.985502243042