condition mean min max ZT0-3 0.153965199 0.074789575 0.233140823 ZT4-7 0.59169858725 0.4102290745 0.7731681 ZT8-11 1.6867489165 1.2238553905 2.1496424425000003 ZT12-15 2.7020043225 2.527938051 2.876070594 ZT16-19 1.0751344375 1.0695165215 1.0807523534999999 ZT20-23 0.8147979215000001 0.7660206440000001 0.863575199