排名	国家/地区	数量	占比
1	China	594	46.6%
2	United States	397	31.1%
3	Germany	114	8.9%
4	Japan	24	1.9%
5	India	17	1.3%
6	Singapore	16	1.3%
7	France	15	1.2%
8	Canada	14	1.1%
9	Ireland	10	0.8%
10	Korea, Republic of	10	0.8%
11	Netherlands	8	0.6%
12	Russia	8	0.6%
13	Iraq	6	0.5%
14	Australia	6	0.5%
15	Cyprus	4	0.3%
16	Argentina	3	0.2%
17	Hong Kong	3	0.2%
18	Norway	3	0.2%
19	Portugal	2	0.2%
20	Kuwait	2	0.2%
21	South Africa	2	0.2%
22	Spain	2	0.2%
23	Switzerland	2	0.2%
24	Hungary	2	0.2%
25	Iran, Islamic Republic of	2	0.2%
26	Bulgaria	2	0.2%
27	Bangladesh	1	0.1%
28	Ecuador	1	0.1%
29	Italy	1	0.1%
30	Iceland	1	0.1%
31	Ukraine	1	0.1%
32	United Kingdom	1	0.1%
33	Malaysia	1	0.1%
34	Mauritius	1	0.1%