Pivot table creates extra data in fields

I'm trying to create a pivot table, but there is a problem. Although my data only has 2 years (1996 and 1997), it creates a new year it calls "blank," and a lot of the data that is supposed to be under 1996 and 1997 appears under this "blank" year. How do I fix this?

See the attachments for the data and pivot table.

Its always better to attach sample file.

Anyway, actually you must write 1996 in each cell From A2 to A13
And 1997 from A14 to A25
Now Pivot Table will give you exact figures .....