Table:
0
A
B
C
D
E
F
1
! Late 1941
Late 1942
Sept. 1943
Late 1943
Late 1944
1978 Veteran membership
2
Bosnia and Herzegovina
20000
60000
89000
108000
100000
3
Croatia
7000
48000
78000
122000
150000
4
Kosovo
5000
6000
6000
7000
20000
5
Macedonia
1000
2000
10000
7000
66000
6
Montenegro
22000
6000
10000
24000
30000
7
Serbia (proper)
23000
8000
13000
22000
204000
8
Slovenia
2000
4000
6000
34000
38000
9
Vojvodina
1000
1000
3000
5000
40000

Questions and formulas:
Question: Name the most late 1943 with late 194 in slovenia
Formula: MAXIFS(D1,A1,"Slovenia")
Formula2: MAXIFS(D2:D9,A2:A9,"Slovenia")
Level: easy
Question: What is the least september 1943 when late 1943 is 78000
Formula: MIN(FILTER(C1, D1=78000))
Formula2: MIN(FILTER(C2:C9, D2:D9=78000))
Level: easy
Question: What is the late 1941 when 1978 veteran membership is 20000
Formula: LET(query1,SUMMARIZE(A1,SUMX(F1)),FILTER(query1,CHOOSECOLS(query1,2)=20000))
Formula2: LET(query1,SUMMARIZE(A2:A9,SUMX(F2:F9)),FILTER(query1,CHOOSECOLS(query1,2)=20000))
Level: hard