Table shows the results of a laboratory consolidation test on a sample of clay when pressure is raised from 100 kN/m to 200 kN/m. Table Time from incremental increment pressure (minute) 0.25 1.00 2.25 4.00 6.25 9.00 16.00 25.00 36.00 1440.00 Decrease in thickness (mm) 0.175 0.305 0.432 0.558 0.658 0.752 0.884 0.968 1.011 1.104 Initial thickness of sample is 18.65 mm. Plot the curve of decrease in thickness versus Vtime. Determine the value of clay consolidation coefficient.