condition mean min max ZT0-3 968.45 968.45 968.45 ZT4-7 730.5 730.5 730.5 ZT8-11 917.45 917.45 917.45 ZT12-15 962.1 962.1 962.1 ZT16-19 1004.6 1004.6 1004.6 ZT20-23 1059.95 1059.95 1059.95