condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 1.0859744999999998 1.0859744999999998 1.0859744999999998 ZT8-11 0.355316 0.355316 0.355316 ZT12-15 0 0 0 ZT16-19 1.41647 1.41647 1.41647 ZT20-23 0.0 0.0 0.0