Statement:
In South Africa, mobile Internet is on average more expensive than in Luxembourg

In the Most expensive mobile internet rating South Africa holds position #77 ²⁰²² out of 204 and Luxembourg is #78 out of 204 ²⁰²².
Position of South Africa is worse than position of Luxembourg.
Both countries holds average positions in the "Most expensive mobile internet" rating. So Average price of 1GB (USD) is an average for both South Africa and Luxembourg, compared to most countries of the World.

Referencies:

1. Most expensive mobile internet ²⁰²² by cable.co.uk

   The countries in the rating sorted by 'Average price of 1GB (USD)' in descending order.

   Luxembourg	'Average price of 1GB (USD)' value is	2.00
   South Africa	'Average price of 1GB (USD)' value is	2.04