Table 3.

Distance matrix based on Jaccard's coefficients.

	Control	20 Kr	40 Kr	60 Kr	80 Kr	100 Kr	120 Kr	140 Kr
Control	1.0000
20 Kr	0.7596	1.0000
40 Kr	0.8579	0.7814	1.0000
60 Kr	0.7377	0.7486	0.8033	1.0000
80 Kr	0.8361	0.7705	0.8251	0.8251	1.0000
100 Kr	0.7814	0.7596	0.8033	0.7486	0.8142	1.0000
120 Kr	0.8087	0.6885	0.8197	0.7432	0.8306	0.7650	1.0000
140 Kr	0.8415	0.7541	0.8087	0.7869	0.7978	0.7541	0.8251	1.0000