Rank	Countries/Territories	Count	Percent
1	China	301	35.1%
2	United States	290	33.8%
3	Germany	89	10.4%
4	France	28	3.3%
5	Switzerland	20	2.3%
6	Japan	15	1.7%
7	Malawi	13	1.5%
8	Netherlands	11	1.3%
9	Taiwan	8	0.9%
10	Singapore	8	0.9%
11	Belgium	6	0.7%
12	Canada	5	0.6%
13	Korea, Republic of	5	0.6%
14	Russia	4	0.5%
15	Ukraine	4	0.5%
16	Malaysia	4	0.5%
17	Hong Kong	4	0.5%
18	India	4	0.5%
19	Cyprus	4	0.5%
20	Australia	4	0.5%
21	Mongolia	3	0.3%
22	Norway	2	0.2%
23	United Arab Emirates	2	0.2%
24	United Kingdom	2	0.2%
25	Sweden	2	0.2%
26	Argentina	2	0.2%
27	Azerbaijan	2	0.2%
28	Indonesia	2	0.2%
29	Iraq	2	0.2%
30	Ireland	2	0.2%
31	Israel	1	0.1%
32	Brazil	1	0.1%
33	Austria	1	0.1%
34	Denmark	1	0.1%
35	Egypt	1	0.1%
36	Turkey	1	0.1%
37	Philippines	1	0.1%
38	Mozambique	1	0.1%
39	Mexico	1	0.1%
40	Jordan	1	0.1%