Data set 1: There are 1 clearings.
Data set 2: There are 3 clearings.
Data set 3: There are 1 clearings.
Data set 4: There are 0 clearings.
Data set 5: There are 0 clearings.
Data set 6: There are 2 clearings.
Data set 7: There are 8 clearings.
Data set 8: There are 6 clearings.
Data set 9: There are 8 clearings.
Data set 10: There are 1003 clearings.