condition mean min max ZT0-3 1133.597 1133.597 1133.597 ZT4-7 2419.7843405000003 2419.7843405000003 2419.7843405000003 ZT8-11 2983.8665650000003 2983.8665650000003 2983.8665650000003 ZT12-15 2488.1503224999997 2488.1503224999997 2488.1503224999997 ZT16-19 2326.8929639999997 2326.8929639999997 2326.8929639999997 ZT20-23 2105.82323 2105.82323 2105.82323