Table:
rank
region, country, or economy
2004
2014
average annual growth rate
2014 world total
2014 cumulative world total

na
world
1272362
2290294
6.1
100
na

1
united states
336194
431623
2.5
18.8
18.8

2
china
110388
395588
13.6
17.3
36.1

3
germany
72177
107747
4.1
4.7
40.8

4
india
28752
106574
14
4.7
45.5

5
japan
95999
103793
0.8
4.5
50

6
united kingdom
75119
101536
3.1
4.4
54.4

7
france
53375
74269
3.4
3.2
57.7

8
italy
42647
70453
5.1
3.1
60.8

9
south korea
27029
63748
9
2.8
63.5

10
canada
40624
60916
4.1
2.7
66.2

11
spain
30977
56604
6.2
2.5
68.7

12
brazil
18814
53152
10.9
2.3
71

13
australia
26277
52269
7.1
2.3
73.3

14
russia
26869
43487
4.9
1.9
75.2

15
iran
4952
36539
22.1
1.6
76.8

Statement: in 2014, researchers in the united states were the world's largest producers of s&e publications of any single country, producing 19% of the 2.3 million world total.
Question: in 2014, researchers in the united states were the world's largest producers of s&e publications of any single country, how many percent did researchers produce of the 2.3 million world total?
Answer: [18.8]