condition mean min max ZT0-3 7520.65 7520.65 7520.65 ZT4-7 7686.1 7686.1 7686.1 ZT8-11 7150.15 7150.15 7150.15 ZT12-15 6685.950000000001 6685.950000000001 6685.950000000001 ZT16-19 6854.15 6854.15 6854.15 ZT20-23 7235.3 7235.3 7235.3