condition mean min max ZT0-3 0.37976076875 0.09755494099999999 0.6619665965 ZT4-7 4.39387092525 3.0129471435 5.774794707 ZT8-11 8.639294545 6.905815270000001 10.372773819999999 ZT12-15 7.597359852 7.087806262 8.106913442 ZT16-19 6.77271108575 5.725150042499999 7.820272129 ZT20-23 9.3927025395 8.8829926775 9.9024124015