θ = 0.4

θ = 0.6

θ = 0.8

θ = 1

θ = 1.2

θ = 1.4

θ = 1.6

d = 4

2.1518

1.9301

1.7361

1.5697

1.4276

1.3062

1.2018

d = 5

1.4651

1.4246

1.3602

1.2882

1.2163

1.1476

1.0833

d = 6

1.6501

1.5917

1.5079

1.4167

1.3270

1.2427

1.1651

d = 7

1.8091

1.7174

1.6051

1.4916

1.3859

1.2908

1.2060