condition mean min max ZT0-3 13.0315 13.0315 13.0315 ZT4-7 10.731145000000001 10.731145000000001 10.731145000000001 ZT8-11 10.47695 10.47695 10.47695 ZT12-15 13.4357 13.4357 13.4357 ZT16-19 14.891300000000001 14.891300000000001 14.891300000000001 ZT20-23 12.6662 12.6662 12.6662