condition mean min max ZT0-3 530.0 530.0 530.0 ZT4-7 529.8 529.8 529.8 ZT8-11 568.2 568.2 568.2 ZT12-15 659.0 659.0 659.0 ZT16-19 941.3 941.3 941.3 ZT20-23 679.55 679.55 679.55