Rank	Countries/Territories	Count	Percent
1	United States	403	42.1%
2	China	190	19.8%
3	Germany	132	13.8%
4	Japan	27	2.8%
5	Italy	25	2.6%
6	France	24	2.5%
7	Netherlands	21	2.2%
8	Spain	16	1.7%
9	Canada	14	1.5%
10	Korea, Republic of	10	1%
11	Singapore	9	0.9%
12	Australia	8	0.8%
13	United Kingdom	8	0.8%
14	Taiwan	6	0.6%
15	Saudi Arabia	5	0.5%
16	Brazil	5	0.5%
17	Egypt	5	0.5%
18	Greece	5	0.5%
19	Ireland	5	0.5%
20	Turkey	5	0.5%
21	India	4	0.4%
22	Belgium	3	0.3%
23	Denmark	3	0.3%
24	Morocco	3	0.3%
25	Romania	3	0.3%
26	Russia	3	0.3%
27	Palestine, State of	2	0.2%
28	Syrian Arab Republic	2	0.2%
29	Cyprus	2	0.2%
30	Indonesia	2	0.2%
31	Hong Kong	1	0.1%
32	Argentina	1	0.1%
33	Tunisia	1	0.1%
34	Sweden	1	0.1%
35	Switzerland	1	0.1%
36	Portugal	1	0.1%
37	Mongolia	1	0.1%
38	Norway	1	0.1%