condition mean min max ZT0-3 26.635250000000003 26.635250000000003 26.635250000000003 ZT4-7 59.1083 59.1083 59.1083 ZT8-11 43.3156 43.3156 43.3156 ZT12-15 10.05208 10.05208 10.05208 ZT16-19 25.00275 25.00275 25.00275 ZT20-23 24.02165 24.02165 24.02165