condition mean min max ZT0-3 14.003050000000002 14.003050000000002 14.003050000000002 ZT4-7 17.483 17.483 17.483 ZT8-11 45.25855 45.25855 45.25855 ZT12-15 84.3038 84.3038 84.3038 ZT16-19 27.3283 27.3283 27.3283 ZT20-23 16.844900000000003 16.844900000000003 16.844900000000003