My wages earned in block #1 on my W-2 form is different than the amount in blocks #3 and #5. These three amounts are normally the same but I have a $4000.00 difference in the three. Block #1 is less than the same totals in block #3 and #5. I checked other W'2's from prior years and the three totals are always the same. What would be the reason for the total in block #1 to be different than in blocks 3 and 5?