How to create a table by country and year with two values in one cell and export it to Latex?

[Anne Smith]

Dear all,

I created a table using a following code:

table year country_id if banktag==1, c(count banktag sum sum_mln_ass)

Now I'd like to export it to tex. format. I tried to use:

tabout year country_id if banktag == 1 using "C:\Users\xxxxx\table8.tex", replace cells(count banktag sum sum_mln_ass) sum style(tex)  bt

but no result...
I need a table in latex format like below:

Thanks in advance.