How many electrons in the ground state of a Hg atom can have the quantum number ml = +1?

The way I am trying to figure this out is as follows..

Electron configuration for HG is..

[Xe]6s^2 5d^10

n=6

l : ml

0: 0

1: -1,0,**1**

2: -2,-1,0,**1**,2

3 -3,-2,-1,0,**1**,2,3

4 -4,-3,-2,-1,0,**1**,2,3,4

5: -5,-4,-3,-2,-1,0,**1**,2,3,4,5

so ml can = +1 where l=1-5

Thats a total of 5 subshells that can have ml=+1.

If each subshell can hold two electrons, then the answer must be 10 right?

But apparently it is actually 16. Can someone please explain to me how it is 16?