Jan ( N = 89 )
Feb ( N = 77 )
Mar ( N = 240 )
Apr ( N = 239 )
May ( N = 243 )
Jun ( N = 185 )
Jul ( N = 191 )
Aug ( N = 201 )
Sep ( N = 224 )
Oct ( N = 231 )
Nov ( N = 161 )
Dec ( N = 248 )