condition mean min max ZT0-3 154.6215 154.6215 154.6215 ZT4-7 157.489 157.489 157.489 ZT8-11 144.4515 144.4515 144.4515 ZT12-15 134.6585 134.6585 134.6585 ZT16-19 144.269 144.269 144.269 ZT20-23 148.388 148.388 148.388