condition mean min max ZT0-3 200.7 200.7 200.7 ZT4-7 205.4 205.4 205.4 ZT8-11 245.4 245.4 245.4 ZT12-15 315.20000000000005 315.20000000000005 315.20000000000005 ZT16-19 286.45 286.45 286.45 ZT20-23 192.8 192.8 192.8