Table 5.

Summary average efficiency scores (2000–2019).

Model	Mean	Std. Dev.	Minimum	Maximum
Kumbhakar	0.854	0.0436	0.7415	0.9581
Battese & Coelli	0.982	0.0156	0.9081	0.9976
TFE	0.944	0.0313	0.7512	0.9913
TRE	0.988	0.0113	0.9349	0.9990