condition mean min max ZT0-3 5740.450000000001 5740.450000000001 5740.450000000001 ZT4-7 4365.8 4365.8 4365.8 ZT8-11 4196.85 4196.85 4196.85 ZT12-15 3335.3 3335.3 3335.3 ZT16-19 4347.4 4347.4 4347.4 ZT20-23 5241.950000000001 5241.950000000001 5241.950000000001