condition mean min max ZT0-3 10188.77497 10188.77497 10188.77497 ZT4-7 10948.97444 10948.97444 10948.97444 ZT8-11 10842.07273 10842.07273 10842.07273 ZT12-15 11414.846880000001 11414.846880000001 11414.846880000001 ZT16-19 11446.169460000001 11446.169460000001 11446.169460000001 ZT20-23 10098.900106 10098.900106 10098.900106