Salient Pumice And Pumicite Statistics

�TABLE 1
SALIENT PUMICE AND PUMICITE STATISTICS¹

(Thousand metric tons and thousand dollars unless otherwise specified)

		2003		2004		2005		2006		2007
United States:
Sold and used by producers:
Quantity		870		1,490		1,270		1,540		1,270
Value^2�		21,900		25,000		39,300		44,300		28,900
Average value	dollars per metric ton	25.20		16.79	^r	31.00		28.85		22.85
Exports³		25	^r	20	^r	15	^r	18	^r	9
Imports for consumption^3�		367		402		240		109	^r	37
Apparent consumption⁴		1,210		1,870		1,490		1,630	^r	1,290
World, production, pumice and related�
volcanic materials		15,800		17,700		17,300		17,200		16,700	^e
^eEstimated.^{� r}Revised.�
¹Data are rounded to no more than three significant digits, except average value.
²Free on board mine and/or mill.
³Source: U.S. Census Bureau.
⁴Production plus imports minus exports plus adjustments for Government and industry stock changes.