Feb ( N = 174 )

Mar ( N = 1159 )

Apr ( N = 1117 )

May ( N = 1111 )

Jun ( N = 1091 )

Jul ( N = 1064 )

Aug ( N = 1121 )

Sep ( N = 1033 )

Oct ( N = 909 )

Nov ( N = 954 )

Dec ( N = 1141 )