Rank	Countries/Territories	Count	Percent
1	China	188	37.5%
2	United States	162	32.3%
3	Germany	32	6.4%
4	Singapore	17	3.4%
5	Japan	15	3%
6	Korea, Republic of	11	2.2%
7		10	2%
8	United Kingdom	7	1.4%
9	Netherlands	6	1.2%
10	France	4	0.8%
11	Australia	4	0.8%
12	Iran, Islamic Republic of	4	0.8%
13	Italy	4	0.8%
14	Malawi	3	0.6%
15	Egypt	3	0.6%
16	South Africa	3	0.6%
17	Switzerland	3	0.6%
18	Turkey	3	0.6%
19	Sweden	2	0.4%
20	Norway	2	0.4%
21	Philippines	2	0.4%
22	Russia	2	0.4%
23	Viet Nam	2	0.4%
24	Malaysia	2	0.4%
25	Mongolia	2	0.4%
26	Hong Kong	2	0.4%
27	Indonesia	1	0.2%
28	Latvia	1	0.2%
29	Argentina	1	0.2%
30	Belgium	1	0.2%
31	Brazil	1	0.2%
32	Canada	1	0.2%