condition mean min max ZT0-3 697.6500000000001 697.6500000000001 697.6500000000001 ZT4-7 380.6 380.6 380.6 ZT8-11 372.6 372.6 372.6 ZT12-15 333.54999999999995 333.54999999999995 333.54999999999995 ZT16-19 609.75 609.75 609.75 ZT20-23 678.55 678.55 678.55