Rank	Countries/Territories	Count	Percent
1	United States	325	41.6%
2	China	233	29.8%
3	Germany	83	10.6%
4	Japan	25	3.2%
5	France	23	2.9%
6	India	21	2.7%
7	Netherlands	14	1.8%
8	Canada	7	0.9%
9	Korea, Republic of	6	0.8%
10	United Kingdom	6	0.8%
11	Australia	5	0.6%
12	Singapore	4	0.5%
13	Slovenia	3	0.4%
14	Ireland	3	0.4%
15	Hong Kong	3	0.4%
16	Iran, Islamic Republic of	2	0.3%
17	Iraq	2	0.3%
18	Mauritius	2	0.3%
19	Denmark	2	0.3%
20	Egypt	2	0.3%
21	Mongolia	2	0.3%
22	Nepal	2	0.3%
23	Israel	1	0.1%
24	South Africa	1	0.1%
25	Switzerland	1	0.1%
26	Bangladesh	1	0.1%
27	Cyprus	1	0.1%
28	Moldova, Republic of	1	0.1%