condition mean min max ZT0-3 3307.25 3307.25 3307.25 ZT4-7 3586.3 3586.3 3586.3 ZT8-11 3593.3500000000004 3593.3500000000004 3593.3500000000004 ZT12-15 3384.35 3384.35 3384.35 ZT16-19 3424.85 3424.85 3424.85 ZT20-23 3358.3500000000004 3358.3500000000004 3358.3500000000004