Rank	Countries/Territories	Count	Percent
1	United States	312	45.8%
2	China	106	15.6%
3	Germany	45	6.6%
4	India	38	5.6%
5	France	21	3.1%
6	Netherlands	21	3.1%
7	Australia	15	2.2%
8	Switzerland	12	1.8%
9	Ireland	11	1.6%
10	Japan	10	1.5%
11	Turkey	9	1.3%
12	Argentina	8	1.2%
13	Canada	7	1%
14	United Kingdom	7	1%
15	Sweden	7	1%
16	Brazil	6	0.9%
17	Korea, Republic of	5	0.7%
18	Iran, Islamic Republic of	5	0.7%
19	Italy	5	0.7%
20	Singapore	4	0.6%
21	Romania	3	0.4%
22	Iraq	3	0.4%
23	Cyprus	3	0.4%
24	Austria	2	0.3%
25	Hong Kong	2	0.3%
26	Mexico	2	0.3%
27	New Zealand	2	0.3%
28	Norway	2	0.3%
29	Portugal	2	0.3%
30	Syrian Arab Republic	2	0.3%
31	Pakistan	1	0.1%
32	Russia	1	0.1%
33	Mongolia	1	0.1%
34	Bosnia and Herzegovina	1	0.1%