condition mean min max ZT0-3 952.7 952.7 952.7 ZT4-7 1148.5 1148.5 1148.5 ZT8-11 1102.85 1102.85 1102.85 ZT12-15 1212.2 1212.2 1212.2 ZT16-19 1185.2 1185.2 1185.2 ZT20-23 1086.5 1086.5 1086.5