FFO, as adjusted, per diluted share, was $0.39 for the second quarter 2021, compared with $0.02 per share for the second quarter 2020. The increase in FFO, as adjusted, per diluted share, as compared with the prior year period is principally a result of $0.15 per diluted share lower net interest expense and a $0.17 per diluted share positive variance in the estimate for uncollectable revenues, rent abatements and write-offs for past due rents.

Other major variances in the second quarter 2021 FFO, as adjusted, per diluted share, compared with the prior year period included $0.07 per diluted share of higher property NOI, including the estimate for uncollectable revenues, rent abatements and write-offs for past due rents. The second quarter 2021 also benefited from a $0.06 per diluted share positive variance from undeclared preferred dividends accrued in the prior year period. G&A expense during the second quarter 2021 was approximately $0.04 per diluted share lower, due to cost saving initiatives.

Sales for the second quarter 2021 increased 22.3% as compared with the second quarter 2019. Sales for the six months ended June 30, 2021, increased 17.2% over the six months ended June 30, 2019.

Total portfolio same-center NOI increased 18.5% for the three months ended June 30, 2021. Total portfolio same-center NOI for the six months ended June 30, 2021, declined 1.9%.