Jan ( N = 987 )
Feb ( N = 890 )
Mar ( N = 988 )
Apr ( N = 935 )
May ( N = 992 )
Jun ( N = 941 )
Jul ( N = 981 )
Aug ( N = 984 )
Sep ( N = 958 )
Oct ( N = 983 )
Nov ( N = 944 )
Dec ( N = 990 )