condition mean min max ZT0-3 1079.3 1079.3 1079.3 ZT4-7 951.7 951.7 951.7 ZT8-11 782.0 782.0 782.0 ZT12-15 1095.4 1095.4 1095.4 ZT16-19 968.75 968.75 968.75 ZT20-23 1098.65 1098.65 1098.65