condition mean min max ZT0-3 0.6014315 0.6014315 0.6014315 ZT4-7 0.1560515 0.1560515 0.1560515 ZT8-11 0.1080065 0.1080065 0.1080065 ZT12-15 2.104155 2.104155 2.104155 ZT16-19 2.145 2.145 2.145 ZT20-23 1.777965 1.777965 1.777965