condition mean min max ZT0-3 122.03942760250001 86.13844575 157.940409455 ZT4-7 308.69559689999994 308.3828408 309.00835299999994 ZT8-11 181.48953532499996 146.10870819999997 216.87036245 ZT12-15 135.8748250875 114.33554195 157.414108225 ZT16-19 206.731891325 205.71476265 207.74902 ZT20-23 203.654341075 192.54683465 214.7618475