condition mean min max ZT0-3 0.209981425 0.12782949999999998 0.29213335 ZT4-7 1.8250600000000001 1.8250600000000001 1.8250600000000001 ZT8-11 12.207699999999999 12.207699999999999 12.207699999999999 ZT12-15 0 0 0 ZT16-19 3.980335 3.980335 3.980335 ZT20-23 1.1359295 1.1359295 1.1359295