Sheet 1, first 4 columns have values something like

1,a,b,c
1,a,b,c
1,a,b,c
2,a,b,c
3,a,b,c
3,a,b,c

On report -sheet 2 - I'like to have a blank row between each
different value on column A. Like below

3 rows for 1
1 blank row
1 row for 2
1 blank row
2 rows for 3

I've had no difficulty coding my report so far. But leaving these
blank rows I couldn't manage.
Any helping code snippets will be really appreciated. Thank you.