Jan ( N = 469 )

Feb ( N = 828 )

Mar ( N = 903 )

Apr ( N = 900 )

May ( N = 931 )

Jun ( N = 900 )

Jul ( N = 930 )

Aug ( N = 927 )

Sep ( N = 480 )

Jan ( N = 1175 )

Feb ( N = 1002 )

Mar ( N = 1225 )

Apr ( N = 1390 )

May ( N = 1488 )

Jun ( N = 1439 )

Jul ( N = 1488 )

Aug ( N = 1489 )

Sep ( N = 1226 )

Oct ( N = 1082 )

Nov ( N = 1115 )

Dec ( N = 1178 )

Aug ( N = None )

Sep ( N = 825 )

Nov ( N = 1 )