condition mean min max ZT0-3 16.554089 16.554089 16.554089 ZT4-7 145.38800849999998 145.38800849999998 145.38800849999998 ZT8-11 260.16299200000003 260.16299200000003 260.16299200000003 ZT12-15 131.6949915 131.6949915 131.6949915 ZT16-19 50.3143715 50.3143715 50.3143715 ZT20-23 25.5865115 25.5865115 25.5865115