Months

Percentage

Our study in 2018

Senegal in 2016 [9]

Iran in 2009 [11]

Tunisia in 2011 [12]

March to may

15.8

37.6

34.1

45

June to august

33.3

29.4

25

15

September to november

18.3

17.4

22.7

15

December to february

29.2

15.6

18.2

25