condition mean min max ZT0-3 101.4429 43.309200000000004 134.1195 ZT4-7 43.095200000000006 43.095200000000006 43.095200000000006 ZT8-11 34.92395 34.92395 34.92395 ZT12-15 38.55175 34.27015 42.833349999999996 ZT16-19 70.47964999999999 70.47964999999999 70.47964999999999 ZT20-23 135.5995 135.5995 135.5995