Table 10 Variance Decomposition of PJRD (Sales-to-Jeonse ratio: difference (%p))

Month	COMP	JPG	PJRD	PPG
step 1	0.380%	74.406%	25.214%	0.000%
step 2	0.340%	67.938%	31.567%	0.154%
step 3	0.358%	66.195%	33.095%	0.352%
step 4	0.387%	65.616%	33.546%	0.451%
step 5	0.411%	65.382%	33.705%	0.502%
step 6	0.426%	65.275%	33.770%	0.529%
step 7	0.435%	65.222%	33.800%	0.543%
step 8	0.440%	65.194%	33.815%	0.550%
step 9	0.443%	65.180%	33.823%	0.554%
step 10	0.444%	65.172%	33.827%	0.557%