condition mean min max ZT0-3 1.2859574999999999 1.164075 1.40784 ZT4-7 0.6180749999999999 0.6180749999999999 0.6180749999999999 ZT8-11 0.5827994999999999 0.5827994999999999 0.5827994999999999 ZT12-15 0 0 0 ZT16-19 1.0818375 1.0818375 1.0818375 ZT20-23 0.8303395 0.8303395 0.8303395