Table:
0
A
B
C
D
E
F
1
Year
Road Opened
Road Closed
Freight Carried s Tonne
Super B Capacity Reached [ citation needed ]
Number of Truck Loads North
2
2000
January 29
April 3
111090
n/a
3703
3
2001
February 1
April 13
245586
~March 3
7981
4
2002
January 26
April 16
256915
February 22
7735
5
2003
February 1
April 2
198818
February 21
5243
6
2004
January 28
March 31
179144
February 23
5091
7
2005
January 26
April 5
252533
February 20
7607
8
2006
February 4
March 26
177674
not reached
6841
9
2007
January 27
April 9
330002
February 26
10922
10
2008
January 29
April 7
245585
February 15
7387
11
2009
February 1
March 25
173195
February 15
5377
12
2010
February 4
March 24
121000
TBA
3506
13
2011
January 28
March 31
241000
February 17
6831
14
2012
February 1
March 28
210000
March 1
6545

Questions and formulas:
Question: What is the most number of truck loads north?
Formula: MAX(F1)
Formula2: MAX(F2:F14)
Level: easy
Question: What is thea year the road closed April 13?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,C1="April 13"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F14,C2:C14="April 13"),1))
Level: medium