2017 T4
2018 T1
2018 T2
2018 T3
2018 T4
2019 T1
Samsung
19
24
21
20
19
23
Huawei
11
12
16
15
16
19
Apple
20
16
12
13
18
12
Xiaomi
7
8
10
10
7
9
Vivo
6
6
8
8
7
7
OPPO
7
7
9
8
8
7
Others
31
28
25
26
25
23