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Figure 13.13--Southern wood chip residue production (1953 to 1999) and wood chip exports from southern customs districts (1989 to 1999), softwood and hardwood (Hansen, B.; Hyldahl, C. 2001. Hardwood and softwood wood chip exports by customs district. [Data]. On file with: Southern Research Station, Forestry Sciences Laboratory, P.O. Box 12254, Research Triangle Park, NC 27709); Johnson 1996; Johnson and Steppleton 1996, 1999, 2001)

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Total southern softwood and hardwood woodchip and residue production volumes and exports:

Year	Hardwood Residue Production	Hardwood Chip Exports	Softwood Residue Production	Softwood Chip Exports
	(Million U.S. Tons (2000 pounds), Equivalent Dry Weight)	(Million U.S. Tons (2000 pounds), Dry Weight)	(Million U.S. Tons (2000 pounds), Equivalent Dry Weight)	(Million U.S. Tons (2000 pounds), Dry Weight)
1953	0.00		0.00
1954	0.00		0.14
1955	0.14		0.41
1956	0.28		0.68
1957	0.14		1.49
1958	0.28		2.16
1959	0.42		2.97
1960	0.56		3.51
1961	0.70		3.78
1962	0.84		4.32
1963	0.98		4.73
1964	1.12		5.27
1965	1.26		5.81
1966	1.54		6.21
1967	1.82		6.89
1968	1.96		8.24
1969	2.38		8.91
1970	2.80		8.91
1971	2.80		11.07
1972	2.80		12.02
1973	3.50		13.91
1974	4.34		14.04
1975	3.22		13.50
1976	3.92		17.01
1977	3.92		18.90
1978	4.20		18.63
1979	5.46		19.71
1980	5.74		18.23
1981	6.30		17.82
1982	5.32		17.55
1983	5.74		19.98
1984	6.44		20.79
1985	6.02		20.79
1986	6.44		21.06
1987	7.14		21.87
1988	7.14		21.06
1989	5.74	0.68	20.25	0.06
1990	6.72	1.10	19.71	0.05
1991	5.74	1.62	19.44	0.05
1992	6.72	2.49	21.47	0.05
1993	6.30	2.27	20.79	0.11
1994	6.58	2.39	21.47	0.00
1995	7.29	2.87	20.93	0.05
1996	6.02	3.77	19.82	0.07
1997	8.22	3.45	21.33	0.11
1998	7.74	3.29	22.16	0.11
1999	8.21	3.20	21.59	0.29