condition mean min max ZT0-3 105.191358 105.191358 105.191358 ZT4-7 82.43320800000001 82.43320800000001 82.43320800000001 ZT8-11 68.7959745 68.7959745 68.7959745 ZT12-15 96.260768 96.260768 96.260768 ZT16-19 91.0884275 91.0884275 91.0884275 ZT20-23 93.37247199999999 93.37247199999999 93.37247199999999