condition mean min max ZT0-3 1681.15 1681.15 1681.15 ZT4-7 1564.5 1564.5 1564.5 ZT8-11 1677.1999999999998 1677.1999999999998 1677.1999999999998 ZT12-15 1623.5 1623.5 1623.5 ZT16-19 1545.8 1545.8 1545.8 ZT20-23 1758.4 1758.4 1758.4