condition mean min max ZT0-3 4000.1 4000.1 4000.1 ZT4-7 2871.2 2871.2 2871.2 ZT8-11 2504.25 2504.25 2504.25 ZT12-15 2520.3500000000004 2520.3500000000004 2520.3500000000004 ZT16-19 2260.45 2260.45 2260.45 ZT20-23 3358.65 3358.65 3358.65