condition mean min max ZT0-3 2509.8500000000004 2509.8500000000004 2509.8500000000004 ZT4-7 3498.7 3498.7 3498.7 ZT8-11 4317.4 4317.4 4317.4 ZT12-15 4523.6 4523.6 4523.6 ZT16-19 3692.95 3692.95 3692.95 ZT20-23 2965.1 2965.1 2965.1