condition mean min max ZT0-3 0.6781812500000001 0.5169725000000001 0.8393900000000001 ZT4-7 0.703296 0.703296 0.703296 ZT8-11 0.6987875 0.6987875 0.6987875 ZT12-15 0 0 0 ZT16-19 1.16193 1.16193 1.16193 ZT20-23 0.8387835 0.8387835 0.8387835