D_t = U_t × F_t × W_t × A_t × M_t × R_t × B_t

U_t

F_t

W_t

A_t

M_t

R_t

B_t

1.0x 1.0x 1.0x 1.0x 1.0x 1.0x 1x 1.5x 2.0x 2.0x 1.5x 1.2x 1.0x

2.2x 3.5x 4.0x 2.0x 1.8x 1.1x

3.0x 6.0x 7.0x 3.0x 2.5x 1.6x

3.8x 10.0x 10.0x 5.0x 3.5x 2.0x

4.5x 12.0x 12.0x 5.0x 3.5x 1.5x