$\theta =0.5$

$\theta =1$

$\theta =1.5$

$\theta =2$

$\theta =2.5$

$\theta =3$

$U_1$

15.6967

20.7887

23.7696

25.6162

26.8205

27.6441

$U_2$

28.0229

28.9796

29.5787

29.9614

30.2151

30.3901