condition mean min max ZT0-3 127.14021432499999 113.82256159999999 140.45786705 ZT4-7 147.10585372500003 132.330992 161.88071545000003 ZT8-11 217.5232254 196.9677064 238.0787444 ZT12-15 286.55525527500004 258.75567195 314.3548386 ZT16-19 274.098606925 261.38908635 286.80812749999996 ZT20-23 205.81780735 185.7834689 225.85214580000002