condition mean min max ZT0-3 224.352 224.352 224.352 ZT4-7 444.02 444.02 444.02 ZT8-11 286.24850000000004 286.24850000000004 286.24850000000004 ZT12-15 159.4035 159.4035 159.4035 ZT16-19 64.11975 64.11975 64.11975 ZT20-23 98.3788 98.3788 98.3788