condition mean min max ZT0-3 157.1095 157.1095 157.1095 ZT4-7 149.9815 149.9815 149.9815 ZT8-11 133.7535 133.7535 133.7535 ZT12-15 145.394 145.394 145.394 ZT16-19 152.10649999999998 152.10649999999998 152.10649999999998 ZT20-23 140.0065 140.0065 140.0065