condition mean min max ZT0-3 1070.508646 1070.508646 1070.508646 ZT4-7 1106.4519145 1106.4519145 1106.4519145 ZT8-11 1119.514827 1119.514827 1119.514827 ZT12-15 1082.960824 1082.960824 1082.960824 ZT16-19 1312.2579335 1312.2579335 1312.2579335 ZT20-23 1478.5428670000001 1478.5428670000001 1478.5428670000001