condition mean min max ZT0-3 12.520096 12.520096 12.520096 ZT4-7 167.97121850000002 167.97121850000002 167.97121850000002 ZT8-11 359.6119175 359.6119175 359.6119175 ZT12-15 232.86809150000002 232.86809150000002 232.86809150000002 ZT16-19 43.0238905 43.0238905 43.0238905 ZT20-23 14.804211500000001 14.804211500000001 14.804211500000001