condition mean min max ZT0-3 388.85 388.85 388.85 ZT4-7 553.4 553.4 553.4 ZT8-11 568.45 568.45 568.45 ZT12-15 608.15 608.15 608.15 ZT16-19 684.7 684.7 684.7 ZT20-23 661.8499999999999 661.8499999999999 661.8499999999999