condition mean min max ZT0-3 649.05 649.05 649.05 ZT4-7 656.8 656.8 656.8 ZT8-11 718.95 718.95 718.95 ZT12-15 695.6 695.6 695.6 ZT16-19 681.8499999999999 681.8499999999999 681.8499999999999 ZT20-23 625.05 625.05 625.05