How often are the landscapers maintaining the common areas?

The landscaping vendor we use to maintain the common areas uses the following guidelines for monthly visits:

January: 1
February: 1
March: 2
April: 2
May: 2
June: 2
July: 2
August: 2
September: 2
October: 2
November: 1
December: 1

Keep in mind that weather conditions may impact how many times the landscapers are actually able to visit and cut the common areas and that all common areas may not be serviced in each visit due to ground conditions.