Jan ( N = 87 )

Feb ( N = 72 )

Mar ( N = 102 )

Apr ( N = 1169 )

May ( N = 1210 )

Jun ( N = 1170 )

Jul ( N = 1169 )

Aug ( N = 1210 )

Sep ( N = 1173 )

Oct ( N = 1184 )

Nov ( N = 1170 )

Dec ( N = 1147 )