condition mean min max ZT0-3 269.18 255.501 282.859 ZT4-7 367.4315 367.4315 367.4315 ZT8-11 453.3195 453.3195 453.3195 ZT12-15 0 0 0 ZT16-19 678.6500000000001 678.6500000000001 678.6500000000001 ZT20-23 633.78 633.78 633.78