Jan ( N = 7 )

Feb ( N = 19 )

Mar ( N = 1205 )

Apr ( N = 1151 )

May ( N = 1152 )

Jun ( N = 1042 )

Jul ( N = 1205 )

Aug ( N = 1172 )

Sep ( N = 1099 )

Oct ( N = 1133 )

Nov ( N = 253 )

Dec ( N = 1 )