Table:
0
A
B
C
D
E
1
Member countries
Population
Area (km²)
GDP (billion US$)
GDP per capita (US$)
2
Denmark
5,021,861
43,094
70.032
$59,928
3
Ireland
3,073,200
70,273
21.103
$39,638
4
United Kingdom
56,210,000
244,820
675.941
$36,728
5
Accession countries
64,305,061
358,187
767.076
11,929
6
Existing members (1973)
192,457,106
1,299,536
2,381,396
12,374
7
EC9 (1973)
256,762,167 (+33.41%)
1,657,723 (+25.44%)
3,148.472 (+32.21%)
12,262 (−0.91%)

Questions and formulas:
Question: What is the GDP of the nation with 56,210,000 people?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1=56210000),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,B2:B7=56210000),5))
Level: medium
Question: What is the area of the nation with GDP per capita (US$) of 11,929?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1=11929),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,E2:E7=11929),3))
Level: medium
Question: What is the population of the nation that has a GDP per capita (US$) of 11,929?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1=11929),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,E2:E7=11929),2))
Level: medium
Question: What is the Population of the nation that has an Area (km²) of 70,273?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1=70273),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,C2:C7=70273),2))
Level: medium
Question: What is the Population of the nation that has a Member countries consisting of existing members (1973)?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="existing members (1973)"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,A2:A7="existing members (1973)"),2))
Level: medium