Reporting amount of 1099-DIV US government obligations

On my 1099-DIV detail statement from Vanguard, the transaction type is categorized as Qualified dividend, Nonqualified dividend, Section 199A Dividend and Long-term/ Short-term capital gain.  How do I calculate the amount of dividends derived from US government obligations?  Am I multiplying the percentage by the Qualified dividends only?

 

Thanks in advance : )