plt.001

y=[20,21,22,19.5,23,24,23,25,28,30,29,32,33,35,38,36,40,41,43,40,44,46,41,47,48,50,49.5,60,58,57,62,65,64,68,70,71,72,71.5,73,74,75,76,75.5,77,80,81,80.5,82,84,83.5,85,86,84,87,86.5,88,87.5,88.2,89,88.8,90.21,90.1,90.2,90.05,90.15,90.1011,89.9,89.99,89.8,90.2,90.1,89.9,89.2,89.1,89.8,90.2,90.1,89.9,89.99,89.8,90.2,90.1,89.9,89.99,89.8,90.2,90.1,89.9,89.99,89.8,90.2,90.1,89.9,89.99,89.8,90.2,90.1,89.1,89.99,89.8];
x=[0:length(y)-1];
plot(x,y,'r'),axis([0 100 0 100])