Feb ( N = 309 )

Mar ( N = 507 )

Apr ( N = 1020 )

May ( N = 1090 )

Jun ( N = 1056 )

Jul ( N = 1057 )

Aug ( N = 1050 )

Sep ( N = 1067 )

Oct ( N = 1109 )

Nov ( N = 1066 )

Dec ( N = 1069 )