Jan ( N = 63 )

Feb ( N = 61 )

Mar ( N = 63 )

Apr ( N = 71 )

May ( N = 189 )

Jun ( N = 186 )

Jul ( N = 182 )

Aug ( N = 184 )

Sep ( N = 182 )

Oct ( N = 188 )

Nov ( N = 179 )

Dec ( N = 181 )