Do white girls find South Asian men attractive?

I am a Srilankan,5ft 10 inches tall,75kgs and average looking.I am living in Australia.I have seen a lot of interracial couples most of them are black men and white women or White men and Asian women.But I have never seen a couple of South Asian men (Indian origin) and White women.I find white girls more attractive than the girls from my own ethnicity.I really don't know why white girls date black men but not South asian men or Indian men.