Total revenue of $18.4 billion increased 3.6 percent from $17.8 billion last year, reflecting sales growth combined with a 6.3 percent increase in other revenue. Second quarter sales growth of 3.6 percent reflected comparable sales growth of 3.4 percent combined with the contribution from non-mature stores. Comparable digital sales grew 34 percent, contributing 1.8 percentage points to comparable sales growth. Operating income was $1,324 million in second quarter 2019, up 16.9 percent from $1,133 million in 2018. Second quarter operating income margin rate was 7.2 percent in 2019, compared with 6.4 percent in 2018. Second quarter gross margin rate was 30.6 percent, compared with 30.3 percent in 2018, reflecting the benefit of merchandising efforts to optimize costs, pricing, promotions and assortment, combined with the benefit of favorable category sales mix.