condition mean min max ZT0-3 2.5038175000000003 1.55515 3.4524850000000002 ZT4-7 359.9079 359.9079 359.9079 ZT8-11 120.511 120.511 120.511 ZT12-15 0 0 0 ZT16-19 3.444025 3.444025 3.444025 ZT20-23 3.46006 3.46006 3.46006