대각선 좌상에 분류된 품목은 기간 중에 경쟁력이 개선되었음을, 우하에 분류된 품목은 경쟁력이 약화되었음을 의미한다.
Items classified on the upper left side of the diagonal indicate that their competitiveness has improved during the period, and items classified on the bottom right indicate that their competitiveness has weakened.