Year

KG1

KG2

P1

P2

P3

P4

P5

P6

2018/2019

40^b

31^b

30^a

32^a

23^a

21^a

13^a

12^a

2020

45^b

34^b

30^a

30^a

30^a

24^a

20^a

15^a

2021

92^a

77^a

32^a

30^a

29^a

30^a

27^a

19^a

Pr > F

<0.001

<0.001

0.625

0.883

0.326

0.567

0.063

0.083