condition mean min max ZT0-3 3343.45 3343.45 3343.45 ZT4-7 2889.1 2889.1 2889.1 ZT8-11 3100.6499999999996 3100.6499999999996 3100.6499999999996 ZT12-15 3084.45 3084.45 3084.45 ZT16-19 3430.55 3430.55 3430.55 ZT20-23 3579.0 3579.0 3579.0