condition mean min max ZT0-3 105.26315 95.0363 115.49000000000001 ZT4-7 99.68465 99.68465 99.68465 ZT8-11 73.07284999999999 73.07284999999999 73.07284999999999 ZT12-15 0 0 0 ZT16-19 123.6 123.6 123.6 ZT20-23 129.5495 129.5495 129.5495