Submunicipalities maps from kostat have inaccurate coordinates

[e9t]

Coordinates have too large values.
They should have values such as [ 126.271987338792329, 33.109158944008691 ].

ex: kostat/2012/json/submunicipalities-geo.json

{
"type": "FeatureCollection",                                                                                
"features": [
{ "type": "Feature",
"properties": { "code": "3902062", "name": "예래동", "name_eng": "Yeraedong", "base_year": "2012" }, 
"geometry": { "type": "Polygon", "coordinates": [ [ [ 147972.970269332377939, -18146.812690775732335 ], [ 147881.628420894761803, -18206.289605131110875 ], [ 147843.39323666630662, -18287.009287894874433 ], [ 147817.903019478806527, -18259.396299857762642 ], [ 147766.922837691759923, -18155.310603178048041 ], [ 147293.222467965155374, -18752.210393314802786 ], [ 146923.611023385106819, -19304.505798392870929 ], [ 146845.016038033500081, -19457.448492387033184 ], [ 146806.780631734669441, -19567.90729302177715 ], ...

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