condition mean min max ZT0-3 359.1 359.1 359.1 ZT4-7 347.1 347.1 347.1 ZT8-11 335.25 335.25 335.25 ZT12-15 414.9 414.9 414.9 ZT16-19 500.54999999999995 500.54999999999995 500.54999999999995 ZT20-23 384.15 384.15 384.15