What could be meaning of diferences in haplogroup % of Baltic nations

[Bodin]

Haplogroups in Lithuania and Latvia( I1 , I2a , I2b ,R1a , R1b , G , J2, J1 , E1b1b , T , Q, N) :
Latvia

6
1
1
40
12
0
0.5
0
0.5
0.5
0.5
38

Lithuania

6
6
1
38
5
0
0
0
1
0.5
0.5
42