To get current Fiscal Week

Hello Guru's ,

I have a infoobject (Fiscal Week) which is developed in the back end. In report i would like to get the "Fiscal Week that justed ended" based on the "Fiscal Week" infoobject.

Example: Fiscal Week 1,2,3,4,5,6....53 is stored in the cube. Suppose i am in Fiscal Week 3 and it has not completed yet then the report should display me fiscal week 2 values. The report will be executed on monday morning so it should give me the fiscal week before that. If there is code to be written in the customer exit please provide me with the Code.

thank You in advance