condition mean min max ZT0-3 204.574 199.801 209.347 ZT4-7 222.2745 222.2745 222.2745 ZT8-11 156.365 156.365 156.365 ZT12-15 0 0 0 ZT16-19 12.297225000000001 12.297225000000001 12.297225000000001 ZT20-23 40.88365 40.88365 40.88365