Table:
0
A
B
C
D
E
F
1
Rank
Country
International tourist arrivals (2012)
International tourist arrivals (2011)
Change (2011 to 2012)
Change (2010 to 2011)
2
1
United States
67.0 million
62.7 million
+6.8%
+4.9%
3
2
Mexico
23.4 million
23.4 million
+0.0%
+0.5%
4
3
Canada
16.3 million
16.0 million
+1.8%
-1.3%
5
4
Brazil
5.6 million
5.4 million
+4.5%
+5.3%
6
5
Argentina
5.5 million
5.7 million
-1.9%
+7.1%
7
6
Dominican Republic
4.5 million
4.3 million
+5.9%
+4.4%
8
7
Chile
3.5 million
3.1 million
+13.3%
+12.0%
9
8
Puerto Rico
3.0 million
3.0 million
+0.7%
-4.3%
10
9
Peru
2.8 million
2.5 million
+9.5%
+13.0%
11
10
Uruguay
2.6 million
2.8 million
-5.7%
+21.6%

Questions and formulas:
Question: In 2011, how many tourists visited the country that had 23.4 million tourists in 2012?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,C1="23.4 million"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F11,C2:C11="23.4 million"),4))
Level: medium
Question: How many tourists visited the country that had 2.5 million tourists in 2011?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1="2.5 million"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F11,D2:D11="2.5 million"),3))
Level: medium