condition mean min max ZT0-3 904.87375 874.3635 935.384 ZT4-7 819.2915 819.2915 819.2915 ZT8-11 605.126 605.126 605.126 ZT12-15 0 0 0 ZT16-19 346.7315 346.7315 346.7315 ZT20-23 675.3530000000001 675.3530000000001 675.3530000000001