Surname distribution

How common is the "Wontner" surname and variations of the name?

According to the Forebears website (http://forebears.co.uk), the 'Wontner' surname is the;
1,367,429th most common surname in the world
Approximately 82 people bear the surname with most surname holders being located in England.

The map below shows the worldwide distribution of people with a Wontner surname (as of 2014):



The map below shows the distribution of people with a Wontner surname in the United Kingdom (as of 1881):

Other similar related or non-related surnames are even less common.

For instance:
"Wantner" is deemed an extinct name.
"Wantur" is the 2,224,158th most common surname in the world with approximately 27 people bearing this surname.
"Wentner" is the 2,339,528th most common surname in the world with approximately 24 people bearing the surname.
"Woontner" is the 3,059,180th most common surname in the world with 12 people using this surname.
"Wonter" is the 5,010,354th most common surname in the world with approximately 3 people bearing the surname.
"Wuntner" is the 6,300,947th most common surname in the world with 1 person bearing the surname.

(All figures above published on Forebears website and data as of 2014).