condition mean min max ZT0-3 2.0302817500000003 1.5393750000000002 2.5211885 ZT4-7 8.101045 8.101045 8.101045 ZT8-11 38.55200000000001 38.55200000000001 38.55200000000001 ZT12-15 0 0 0 ZT16-19 14.9323 14.9323 14.9323 ZT20-23 8.596710000000002 8.596710000000002 8.596710000000002