condition mean min max ZT0-3 1030.6 1030.6 1030.6 ZT4-7 941.3 941.3 941.3 ZT8-11 999.25 999.25 999.25 ZT12-15 950.1 950.1 950.1 ZT16-19 1067.65 1067.65 1067.65 ZT20-23 1086.5 1086.5 1086.5