On 2017-05-15 this data set was corrected: Data erroneously labelled as SWD were corrected to SWU, data erroneously labelled as SWU were corrected to LWU.
On 2017-05-15 this data set was corrected: Data erroneously labelled as SWD were corrected to SWU, data erroneously labelled as SWU were corrected to LWU.
