Fathers’ income group	Sons’ income group										Unit (%)
Fathers’ income group	1	2	3	4	5	6	7	8	9	10	Total
1	15	20	5	5	30	5	15	0	5	0	100
2	7.89	34.2	10.5	17.1	17.1	10.5	2.63	0	0	0	100
3	2.17	8.7	22.8	28.3	27.2	9.78	0	0	1.09	0	100
4	1.11	5.56	8.15	49.6	23	9.26	2.59	0	0.37	0.37	100
5	0.85	2.35	4.69	29.6	40.3	16.8	4.05	1.07	0.21	0	100
6	0.46	1.15	3.23	5.3	15.9	49.8	15.4	4.84	2.53	1.38	100
7	0.4	0.4	0.4	1.19	5.14	28.1	36	17	9.49	1.98	100
8	0	0	1.11	1.11	4.44	16.7	31.1	23.3	16.7	5.56	100
9	0	0	0	0	7.55	9.43	13.2	37.7	28.3	3.77	100
10	0	0	0	0	0	11.1	22.2	44.4	22.2	0	100
Total	1.19	3.96	5.1	19.3	21.8	24.3	12.8	6.46	4.02	1.08	100