condition mean min max ZT0-3 1667.65 1667.65 1667.65 ZT4-7 2288.7 2288.7 2288.7 ZT8-11 2190.3 2190.3 2190.3 ZT12-15 1633.8 1633.8 1633.8 ZT16-19 1444.6 1444.6 1444.6 ZT20-23 1443.1 1443.1 1443.1