Table 2.

Values of θ^eff and ${\kappa }_s^{eff}$ for each period obtained by adjusting the model to the real data.

	P1		P2		P3		P4		P5		P6
Country	θeff	${\kappa }_a^{eff}$	θeff	${\kappa }_a^{eff}$	θeff	${\kappa }_a^{eff}$	θeff	${\kappa }_a^{eff}$	θeff	${\kappa }_a^{eff}$	θeff	${\kappa }_a^{eff}$
Belgium	2.50	1.00	2.60	0.00	1.00	0.00	1.20	0.80	0.70	0.40	–
Brazil	4.40	0.20	1.50	0.20	2.70	0.00	1.70	0.50	1.40	1.00	2.10	0.45
UK	3.60	0.10	2.80	0.00	2.60	0.10	1.90	0.00	1.30	0.05	1.00	0.30
USA	4.60	0.05	2.60	1.00	2.00	0.40	1.30	0.75	0.90	1.00	1.10	0.15