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Condensed Statements of Cash Flows - USD ($)		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Cash Flows from Operating Activities:
Net income (loss)		$ 41,440,395	$ (25,119,958)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Change in unrealized (gain) loss on open commodity futures contracts		(8,340,980)	24,361,247
(Increase) decrease in dividends receivable		(3,466)	9,571
(Increase) decrease in interest receivable		6,665	5,576
(Increase) decrease in prepaid insurance	[1]	(39,454)	(4,480)
(Increase) decrease in prepaid registration fees		37,350	0
(Increase) decrease in ETF transaction fees receivable		0	(350)
Increase (decrease) in payable due to Broker		10,714,829	0
Increase (decrease) in General Partner management fees payable		8,217	(7,897)
Increase (decrease) in professional fees payable		(44,086)	(53,646)
Increase (decrease) in brokerage commissions payable		0	1,080
Increase (decrease) in directors' fees payable	[1]	148	(473)
Increase (decrease) in license fees payable	[1]	(185)	(352)
Net cash provided by (used in) operating activities		43,779,433	(809,682)
Cash Flows from Financing Activities:
Addition of partnership shares		0	20,860,352
Redemption of partnership shares		(40,340,230)	(3,396,329)
Net cash provided by (used in) financing activities		(40,340,230)	17,464,023
Net Increase (Decrease) in Cash and Cash Equivalents		3,439,203	16,654,341
Total Cash, Cash Equivalents and Equity in Trading Accounts, beginning of period		182,551,168	51,606,975
Total Cash, Cash Equivalents and Equity in Trading Accounts, end of period		$ 185,990,371	$ 68,261,316
[1] Certain prior year amounts have been reclassified for consistency with the current presentation.

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