Table 2. Statistics of the surface of revolution volume and loop by type.

Span	Wave height	Type	volume (mm3)		loop (mm)
			mean	sd	mean	sd
Few	Low	FL	7228.15	1063.20	49.52	1.44
Few	Mix	FM	8634.69	5681.89	66.82	14.00
Few	High	FH	12776.83	5353.32	74.60	7.88
Medium	Low	ML	8109.63	334.98	51.97	0.44
Medium	Mix	MM	10711.58	1404.52	81.09	3.76
Medium	High	MH	8297.65	1575.01	103.05	8.58
Many	Low	XL	8012.16	853.31	52.07	2.50
Many	Mix	XM	10179.54	1932.38	88.34	19.02
Many	High	XH	10754.31	1458.09	122.89	19.52