Consider the standard negative feedback configuration with G(s) = $\frac{s^2+0.2s+100}{s^2 – 0.2s +100}$ and H(s) = $\frac{1}{2}$. The number of clockwise encirclements of (-1,0) in the Nyquist plot of the Loop transfer-function G(s)H(s) is $\_\_\_\_\_$