● 60% 20% 20% 80% 20% 1 5% 2 3 60-95% 5% 40% 80% ] ) ( ) ( ) [( 1 2 , , 2 2 , 2 , 2 1 , 1 , T I T P I P I P r r r r r r T ? + + ? + ?=Λ σ t P r , t I r , t P r , t I r , t P r , t I r ,