Jan ( N = 920 )

Feb ( N = 1314 )

Mar ( N = 1457 )

Apr ( N = 1409 )

May ( N = 1453 )

Jun ( N = 1320 )

Jul ( N = 1346 )

Aug ( N = 1452 )

Sep ( N = 1413 )

Oct ( N = 1454 )

Nov ( N = 1405 )

Dec ( N = 1457 )