Zone

Flow Wh/d

Jan.

Feb.

March

April

May

June

July

August

Sept.

Oct.

Nov.

Dec.

B

IRg

4419

4976

6549

7236

7323

6641

5193

5075

5135

5212

5090

4121

IRd

3058

3493

4821

5450

5510

4855

3414

3276

3634

4137

3664

2764