Table 1.

Means and Standard Deviations of the Sum of the Corresponding Top and Bottom Mark Area (Pixels) Data Grouped by Load Level (Newtons) - Rounded to the Nearest Pixel

	Force (N)
	25	50	100	150	200
Mean	69	136	243	300	414
SD	151	246	281	333	364
	250	300	350	400	450
Mean	505	588	644	732	733
SD	378	382	338	367	359