Table 3. Losses in D-efficiency (in bold) in per cent with respect to the FGM copula ($\alpha =0$).

	Frank		Clayton		Gumbel
τ	$\overline{\alpha }$	D-eff	$\overline{\alpha }$	D-eff	$\overline{\alpha }$	D-eff
$0.11$	1.00	0.01	0.24	2.42	1.12	0.87
$0.45$	5.00	0.36	1.68	1.13	1.84	0.5
$0.66$	10.00	3.18	3.98	1.34	3.00	2.84
$0.76$	15.00	5.63	6.42	5.54	4.21	5.13
$0.82$	20.00	6.24	8.89	13.94	5.45	6.12