condition mean min max ZT0-3 201.15 201.15 201.15 ZT4-7 195.2 195.2 195.2 ZT8-11 250.60000000000002 250.60000000000002 250.60000000000002 ZT12-15 218.1 218.1 218.1 ZT16-19 187.45 187.45 187.45 ZT20-23 180.35 180.35 180.35