condition mean min max ZT0-3 12729.7 12729.7 12729.7 ZT4-7 13374.1 13374.1 13374.1 ZT8-11 13159.900000000001 13159.900000000001 13159.900000000001 ZT12-15 12299.25 12299.25 12299.25 ZT16-19 10376.15 10376.15 10376.15 ZT20-23 11306.85 11306.85 11306.85