condition mean min max ZT0-3 11.3080325 9.71398 12.902085 ZT4-7 14.991150000000001 14.991150000000001 14.991150000000001 ZT8-11 31.809600000000003 31.809600000000003 31.809600000000003 ZT12-15 0 0 0 ZT16-19 33.29705 33.29705 33.29705 ZT20-23 20.53835 20.53835 20.53835