Python counters

from collections import Counter
import csv
counter = Counter()
with open("/Users/npblue/PycharmProjects/data/credit.csv", 'r') as file:
  csvreader = csv.reader(file, delimiter=',')
  count=0
  for row in csvreader:
      if count==0:
          count += 1
      else:
          counter+=Counter({float(row[7])})


print(counter)
def getMedian(lst):
    sorted_lst = sorted(lst)
    n = len(sorted_lst)
    if n % 2 == 0:
        middle1 = sorted_lst[n // 2 - 1]
        middle2 = sorted_lst[n // 2]
        median = (middle1 + middle2) / 2
    else:
        median = sorted_lst[n // 2]
    return median
print("Type  :",type(counter))

print("min value :",min(counter))

print("max value :",max(counter))

print("mean value :",sum(counter)//len(counter))

print("median value :",getMedian(counter))