how to clear value

hi friends,

clear:atwrt,atwrt1,atwrt2,atwrt3,atwrt4.

select single ATWRT from ausp into ATWRT

where objek = itab-matnr

and atinn = '37'.

select single ATWRT from ausp into ATWRT1

where objek = itab-matnr

and atinn = '13'.

select single ATWRT from ausp into ATWRT2

where objek = itab-matnr

and atinn = '54'.

select single ATWRT from ausp into ATWRT3

where objek = itab-matnr

and atinn = '59'.

select single ATWRT from ausp into ATWRT4

where objek = itab-matnr

and atinn = '65'.

my problem is i am able to print only last value.

plz correct me how 2 clear value.