import matplotlib.pyplot as plt
i = [4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,35,40,45,50,60,70,75,80,90,100,125,150,200]
j = [4.55,5.70,6.80,7.95,9.10,10.20,11.35,12.50,13.60,14.75,15.90,17.00,18.15,19.30,20.40,21.55,22.70,23.80,24.95,26.10,27.25,27.80,28.95,30.10,31.20,32.35,33.50,39.15,44.80,50.50,55.60,67.00,78.30,83.45,89.10,100.45,111.25,139.00,166.85,222.50]
z = []
for k in range(0,40):
q = j[k] / i[k]
z.append(q)
#plt.axis([0,200,0,1.140])
plt.plot(i,z)