you are a member and now your asking how to become JR Member?what kind of question js this?you have just passed being newbie and jr member and now that your a member asking such thing?common man.but still im gonna share you

this is how your activity points grows and rank

1 X 14 = 14
2 X 14 = 28
3 X 14 = 42   --  Jr. Member ( 1.5 month)
4 X 14 = 56
5 X 14 = 70   --  Member (2.5 month)
6 X 14 = 84
7 X 14 = 98
8 X 14 = 112
9 X 14 = 126   --  Full Member (4.5 month)
10 X 14 = 140
11 X 14 = 154
12 X 14 = 168
13 X 14 = 182
14 X 14 = 196
15 X 14 = 210
16 X 14 = 224
17 X 14 = 238
18 X 14 = 252   --  Senior Member (8.5 month)
19 X 14 = 266
20 X 14 = 280
21 X 14 = 294
22 X 14 = 308
23 X 14 = 322
24 X 14 = 336
25 X 14 = 350
26 X 14 = 364
27 X 14 = 378
28 X 14 = 392
29 X 14 = 406
30 X 14 = 420
31 X 14 = 434
32 X 14 = 448
33 X 14 = 462
34 X 14 = 476
35 X 14 = 490   --  Hero Member (1.3 years)