Table:
0
A
B
C
D
E
1
Member countries
Population
Area (km²)
GDP (billion US$)
GDP per capita (US$)
2
Austria
8,206,524
83,871
145.238
18,048
3
Finland
5,261,008
338,145
80.955
15,859
4
Sweden
9,047,752
449,964
156.640
17,644
5
Accession countries
22,029,977
871,980
382.833
17,378
6
Existing members (1995)
350,909,402
2,495,174
5,894.232
16,797
7
EU15 (1995)
372,939,379 (+6.28%)
3,367,154 (+34.95%)
6,277.065 (+6.50%)
16,831 (+0.20%)

Questions and formulas:
Question: What is the per-capita GDP for the country with an overall GDP of 156.640?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1=156.64),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,D2:D7=156.64),5))
Level: medium
Question: What is the per-capita GDP of the country with an overall GDP of 80.955?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1=80.955),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,D2:D7=80.955),5))
Level: medium
Question: Which country has an area of 871,980 square km?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1=871980),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,C2:C7=871980),1))
Level: medium