Table:
0
A
B
C
D
E
F
G
1
Park
Tower height
Drop height*
Speed
Model
Opened
Height requirement
2
Canada's Wonderland
230feet
200feet
62mph
Giant Drop
1997
inches (cm)
3
Carowinds
174feet
100feet
56mph
Giant Drop
March 1996
inches (cm)
4
California's Great America
224feet
207feet
62mph
Giant Drop
March 1996
inches (cm)
5
Kings Dominion
305feet
272feet
72mph
Gyro Drop
March 22, 2003
inches (cm)
6
Kings Island
315feet
264feet
67mph
Gyro Drop
1999
inches (cm)

Questions and formulas:
Question: What park opened in 1999?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,F1=1999),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G6,F2:F6=1999),1))
Level: medium