Table:
region, country, or economy
u.s. share of region's, country's, or economy's international articles
region's, country's, or economy's share of u.s. international articles

world
39.3
na

china
45.9
19.8

united kingdom
29.5
13

germany
28.7
11.4

canada
44.3
10.5

france
25.1
7.7

italy
29
6.6

australia
28.9
5.9

japan
32.7
5.5

south korea
49.2
5.2

spain
24.8
4.9

netherlands
29.9
4.7

switzerland
30.1
4.2

india
32.8
3.4

brazil
34.8
3.4

sweden
27.6
3

Statement: researchers in china accounted for about 20% of u.s. internationally coauthored publications in 2014.
Question: how many percent did researchers in china account of u.s. internationally coauthored publications in 2014?
Answer: [19.8]