Table 3.

Technical efficiency results

LHA	Technical efficiency	Tech. Eff. bias corrected	Bias	Bootstrap Std.	CI lower bound	CI upper bound
12	1	0.979	0.021	0.018	0.937	0.999
1	0.953	0.934	0.022	0.019	0.893	0.953
7	0.928	0.909	0.023	0.019	0.869	0.928
2	0.912	0.893	0.023	0.02	0.854	0.911
11	0.904	0.885	0.023	0.02	0.846	0.903
5	0.893	0.875	0.024	0.02	0.837	0.893
3	0.873	0.856	0.024	0.021	0.818	0.873
4	0.851	0.834	0.025	0.021	0.797	0.851
9	0.851	0.834	0.025	0.021	0.797	0.851
8	0.847	0.829	0.025	0.021	0.793	0.846
6	0.794	0.778	0.026	0.023	0.744	0.794
10	0.692	0.678	0.030	0.026	0.648	0.692