Amazon Alexa超级碗广告，及Amazon 2019年第四季度财务报告

营运现金流(operating cash flow)在2019年全年对比2018年增长25%，达到385亿美元。

自由现金流（free cash flow）在2019年全年达258亿美元，对比2018年为194亿美元。

Free cash flow less principal repayments of finance leases and financing obligation在2019年全年达162亿美元，对比2018年为116亿美元.

Free cash flow less equipment finance leases and principal repayments of all other finance leases and financing obligations,在2019年全年达125亿美元，对比2018年为84亿美元。

Common shares outstanding plus shares underlying stock-based awards, 在2019年全年达512Million美元，对比2018年为507Million美元。

Fourth Quarter 2019

Net sales increased 21% to $87.4 billion in the fourth quarter, compared with $72.4 billion in fourth quarter 2018. Excluding the $120 million unfavorable impact from year-over-year changes in foreign exchange rates throughout the quarter, net sales increased 21% compared with fourth quarter 2018.

Operating income increased to $3.9 billion in the fourth quarter, compared with operating income of $3.8 billion in fourth quarter 2018.

Net income increased to $3.3 billion in the fourth quarter, or $6.47 per diluted share, compared with net income of $3.0 billion, or $6.04 per diluted share, in fourth quarter 2018.

Full Year 2019

Net sales increased 20% to $280.5 billion, compared with $232.9 billion in 2018. Excluding the $2.6 billion unfavorable impact from year-over-year changes in foreign exchange rates throughout the year, net sales increased 22% compared with 2018.

Operating income increased to $14.5 billion, compared with operating income of $12.4 billion in 2018.

Net income increased to $11.6 billion, or $23.01 per diluted share, compared with net income of $10.1 billion, or $20.14 per diluted share, in 2018.