condition mean min max ZT0-3 19.310699999999997 19.310699999999997 19.310699999999997 ZT4-7 12.04355 12.04355 12.04355 ZT8-11 6.7051 6.7051 6.7051 ZT12-15 10.000225 10.000225 10.000225 ZT16-19 45.469899999999996 45.469899999999996 45.469899999999996 ZT20-23 25.6806 25.6806 25.6806