condition mean min max ZT0-3 9280.1 9280.1 9280.1 ZT4-7 6158.4 6158.4 6158.4 ZT8-11 5206.9 5206.9 5206.9 ZT12-15 4300.6 4300.6 4300.6 ZT16-19 4555.2 4555.2 4555.2 ZT20-23 6987.05 6987.05 6987.05