Are blacks the only ones that have type 4 hair?

For the description of Type 4 hair, see: http://www.naturallycurly.com/hair-types

Not just curly (type 3), but kinky / nappy (type 4).

In Indonesia there are native people with type 4 hair, but they usually look similar to Africans.

Thanks in advance for your responses!

Are blacks the only ones that have type 4 hair?

Nope, my hubby is jewish and he has that kind of hair too.