排名	国家/地区	数量	占比
1	United States	542	41.2%
2	China	348	26.5%
3	Germany	180	13.7%
4	France	51	3.9%
5	Netherlands	46	3.5%
6	Korea, Republic of	41	3.1%
7	Japan	13	1%
8	Canada	13	1%
9	Singapore	12	0.9%
10	Cyprus	9	0.7%
11	Egypt	6	0.5%
12	India	6	0.5%
13	Hong Kong	5	0.4%
14	Iran, Islamic Republic of	4	0.3%
15	Ireland	4	0.3%
16	Burkina Faso	4	0.3%
17	Mexico	4	0.3%
18	Ukraine	3	0.2%
19	Malaysia	3	0.2%
20	Australia	3	0.2%
21	Bangladesh	3	0.2%
22	Benin	2	0.2%
23	Thailand	2	0.2%
24	Pakistan	2	0.2%
25	South Africa	2	0.2%
26	Sweden	1	0.1%
27	Switzerland	1	0.1%
28	Russia	1	0.1%
29	Nepal	1	0.1%
30	Argentina	1	0.1%
31	Czech Republic	1	0.1%
32	Lithuania	1	0.1%