condition mean min max ZT0-3 123.937988 123.937988 123.937988 ZT4-7 118.00213149999999 118.00213149999999 118.00213149999999 ZT8-11 145.404152 145.404152 145.404152 ZT12-15 155.809668 155.809668 155.809668 ZT16-19 144.86611 144.86611 144.86611 ZT20-23 142.80898000000002 142.80898000000002 142.80898000000002