condition mean min max ZT0-3 2299.45 2299.45 2299.45 ZT4-7 2874.4 2874.4 2874.4 ZT8-11 2502.35 2502.35 2502.35 ZT12-15 2403.7 2403.7 2403.7 ZT16-19 2545.4 2545.4 2545.4 ZT20-23 2264.7 2264.7 2264.7