condition mean min max ZT0-3 198.001288 198.001288 198.001288 ZT4-7 230.2247025 230.2247025 230.2247025 ZT8-11 214.2484235 214.2484235 214.2484235 ZT12-15 185.2987475 185.2987475 185.2987475 ZT16-19 148.582658 148.582658 148.582658 ZT20-23 148.5694345 148.5694345 148.5694345