condition mean min max ZT0-3 0.29249 0.29249 0.29249 ZT4-7 0.2808905 0.2808905 0.2808905 ZT8-11 0.058913 0.058913 0.058913 ZT12-15 0.14799825 0.14799825 0.14799825 ZT16-19 0.3545785 0.3545785 0.3545785 ZT20-23 0.34791 0.34791 0.34791