Like this

|||| Upgrade to Hit or Wound | +1 to any Roll
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1st|            1            |	     1
2nd|            3            |	     4
3rd|            5            |	     7
4th|            7            |	     10
5th|            9            |	     13
6th|            11           |	     16
7th|            13           |	     19
etc