Table 1.

The Result of Principal Component Analysis

Component	Initial eigenvalue			Extraction sum of squared loadings
	Total	Variance (%)	Cumulation (%)	Total	Variance (%)	Cumulation (%)
1	31.128	27.793	27.793	31.128	27.793	27.793
2	12.589	11.240	39.033	12.589	11.240	39.033
3	8.365	7.469	46.503	8.365	7.469	46.503
4	8.075	7.210	53.713	8.075	7.210	53.713
5	4.726	4.220	57.933	4.726	4.220	57.933
6	4.192	3.743	61.675	4.192	3.743	61.675
7	3.836	3.425	65.100	3.836	3.425	65.100
8	3.425	3.058	68.158	3.425	3.058	68.158
9	2.938	2.624	70.782	2.938	2.624	70.782
10	2.775	2.478	73.259	2.775	2.478	73.259
11	2.606	2.327	75.586	2.606	2.327	75.586
12	1.928	1.721	77.308	1.928	1.721	77.308
13	1.880	1.678	78.986	1.880	1.678	78.986
14	1.663	1.485	80.471	1.663	1.485	80.471
15	1.565	1.397	81.868	1.565	1.397	81.868
16	1.515	1.353	83.221	1.515	1.353	83.221
17	1.293	1.154	84.375	1.293	1.154	84.375
18	1.276	1.139	85.515	1.276	1.139	85.515
19	1.170	1.045	86.559	1.170	1.045	86.559
20	1.067	0.953	87.512	1.067	0.953	87.512
21	1.052	0.939	88.451	1.052	0.939	88.451
22	0.925	0.826	89.277
23	0.831	0.742	90.019
24	0.786	0.702	90.721
25	0.677	0.605	91.326