Rank	Countries/Territories	Count	Percent
1	United States	252	34.3%
2	China	234	31.9%
3	Germany	64	8.7%
4	France	22	3%
5		22	3%
6	Netherlands	22	3%
7	Spain	17	2.3%
8	Australia	14	1.9%
9	Iran, Islamic Republic of	11	1.5%
10	Japan	11	1.5%
11	United Kingdom	10	1.4%
12	India	7	1%
13	Italy	6	0.8%
14	Korea, Republic of	6	0.8%
15	Canada	6	0.8%
16	Cyprus	4	0.5%
17	Singapore	4	0.5%
18	Ukraine	3	0.4%
19	Norway	2	0.3%
20	Mexico	2	0.3%
21	Armenia	2	0.3%
22	Ireland	2	0.3%
23	Hong Kong	2	0.3%
24	Mauritius	1	0.1%
25	Argentina	1	0.1%
26	Mongolia	1	0.1%
27	Morocco	1	0.1%
28	Russia	1	0.1%
29	Sweden	1	0.1%
30	Switzerland	1	0.1%
31	Taiwan	1	0.1%
32	South Africa	1	0.1%