condition mean min max ZT0-3 1.23188775 1.0212105 1.442565 ZT4-7 1.0153159999999999 1.0153159999999999 1.0153159999999999 ZT8-11 2.410015 2.410015 2.410015 ZT12-15 0 0 0 ZT16-19 1.79234 1.79234 1.79234 ZT20-23 2.16 2.16 2.16