Table:
0
A
B
C
D
E
1
Year
Domestic
International
Total
Change
2
2005
669
13,028
13,697
−14.8%
3
2006
545
16,868
17,413
+27.1%
4
2007
856
24,230
25,086
+44.1%
5
2008
772
20,473
21,245
−15.3%
6
2009
814
16,869
17,683
−16.8%
7
2010
848
15,175
16,023
−9.4%
8
2011
721
17,517
18,238
+13.8%

Questions and formulas:
Question: What is the number for the international with 669 domestic earlier than 2005?
Formula: SUM(FILTER(C1, (B1=669)*(A1<2005)))
Formula2: SUM(FILTER(C2:C8, (B2:B8=669)*(A2:A8<2005)))
Level: easy
Question: What year was the international lower than 17,517 and domestic was less than 545?
Formula: LET(query1,SUMMARIZE(A1,SUMX(C1),SUMX(B1)),FILTER(query1,(CHOOSECOLS(query1,2)<17517)*(CHOOSECOLS(query1,3)<545)))
Formula2: LET(query1,SUMMARIZE(A2:A8,SUMX(C2:C8),SUMX(B2:B8)),FILTER(query1,(CHOOSECOLS(query1,2)<17517)*(CHOOSECOLS(query1,3)<545)))
Level: hard