pre_text: Geographic Information Revenue based on the geographic location of our customer's headquarters was as follows: We ship our products to locations specified by our customers and, as a result, customers may have headquarters in one location with global supply chain and operations in other locations. Our customers may request we deliver products to countries where they own or operate production facilities or to countries where they utilize third-party subcontractors or warehouses. Based on the ship-to locations specified by our customers, revenue from sales into China (including Hong Kong) accounted for 53%, 57%, and 51% of total revenue in 2019, 2018, and 2017, respectively; revenue from sales into Taiwan accounted for 13%, 9%, and 13% of total revenue in 2019, 2018, and 2017, respectively; and revenue from sales into the United States accounted for 11%, 12%, and 14% of total revenue in 2019, 2018, and 2017, respectively.
table: For the year ended 2019 2018 2017
table: United States $12,451 $17,116 $11,359
table: Mainland China (excluding Hong Kong) 3,595 3,607 1,539
table: Taiwan 2,703 3,918 2,892
table: Hong Kong 1,614 1,761 1,429
table: Other Asia Pacific 1,032 1,458 1,078
table: Japan 958 1,265 1,042
table: Other 1,053 1,266 983
table: $23,406 $30,391 $20,322
question: Analyse this data from a financial earnings document. What is the revenue amount from sales into China (including Hong Kong) in 2019, based on the ship-to locations?