condition mean min max ZT0-3 231.594 176.711 286.477 ZT4-7 93.3883 93.3883 93.3883 ZT8-11 84.81585 84.81585 84.81585 ZT12-15 0 0 0 ZT16-19 173.66 173.66 173.66 ZT20-23 123.04499999999999 123.04499999999999 123.04499999999999