def enumerate_this_months_customer_entries(customer_entries):
    dates = []
    for item in customer_entries:
        dates.append(item[2])
    days = []
    for item in dates:
        days.append(datetime.datetime.strptime(item, '%Y-%m-%d').day)
    return Counter(days)
def enumerate_this_months_customer_entries(customer_entries):
    dates = []
    for item in customer_entries:
        dates.append(item[2])
    days = []
    for item in dates:
        days.append(datetime.datetime.strptime(item, '%Y-%m-%d').day)
    return Counter(days)