2:1 STR:CON - Till you get 30 CON (LVL 52)
1:1 STR:SPR - Till you get 30 SPR (LVL 96)
3:1:1 STR:CON:SPR - Till you MAX out STR, max out means invest 95 points.
For the current state you suppose to have 98 STR with 56 points invested.
That means you suppose to stop investing to STR at lvl 159, this is the last lvl you invest to STR. From that invest to CON:SPR 1:1
On lvl 201 stop investing to SPR, coz you rich MAX SPR for build and invest in CON another 24 points, so at lvl 225 you will have all your stats MAXED.
Save 45 Points, coz it's not yet tested if we really need DEX, if you start miss a lot then invest all points to DEX.