condition mean min max ZT0-3 735.157 722.0 748.3140000000001 ZT4-7 821.98 821.98 821.98 ZT8-11 492.022 492.022 492.022 ZT12-15 0 0 0 ZT16-19 151.69 151.69 151.69 ZT20-23 513.596 513.596 513.596