condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.00453917825 0.0 0.0090783565 ZT12-15 0.030794157749999995 0.0182505675 0.043337747999999995 ZT16-19 0.0 0.0 0.0 ZT20-23 0.014497359750000001 0.0 0.028994719500000002