2008-2012

2013-2016

βi

P-value

R2

βi

P-value

R2

Basic consumption

0.4611

0.0002

0.9938

0.2998

0.0019

0.9962

Traditional consumption

0.1208

0.0001

0.9977

0.087

0.0012

0.9977

Emerging consumption

0.3694

0.0004

0.9911

0.5065

0.0001

0.9979

Potential consumption

0.0488

0.0017

0.9748

0.1068

0.0004

0.9991