height	trt	block
01            2.47	control	a
02            2.15	control	b
03            1.46	control	c
04            2.36	control	d
05            1	control	e
06            1.58	low	a
07            1.15	low	b
08            1.27	low	c
09            1.25	low	d
10            1	low	e
11            1.1	high	a
12            1.05	high	b
13            0.5	high	c
14            1	high	d
15            1.5	high	e