Please take into account 2 added races.

29.3. MR2 WE5
5.4. MRT SO2
12.4. MRT AS2r
19.4. MR1 FE2
26.4. MR1 FE2r
3.5. MRT RO5
10.5. MR2 AU X own layout
17.5. MRT AS1r
24.5. MRT WE X own layout
31.5. MRT SO3r

MR1 = 10 % air intake restriction
MR2 = 20 % air intake restriction

8 best races are counted in the championship.