Table 1.

Each index principal component analysis results in 2009–2011

Year	Index type	Variables	Principal components (n)	Cumulative (%)
2009	Input indexes	Medical personnel and equipment input	2	81.4
		Construction input	1	96.9
		Financial input	1	86.3
	Output indexes	Bed utilization output	1	98.2
		Service output	3	87.2
2010	Input indexes	Medical personnel and equipment input	1	71.4
		Construction input	1	97.6
		Financial input	1	90.3
	Output indexes	Bed utilization output	1	76.9
		Financial input	3	87.2
2011	Input indexes	Medical personnel and equipment input	2	76.7
		Construction input	1	95.1
		Financial input	1	80.9
	Output indexes	Bed utilization output	1	96.2
		Financial input	2	80.5