Jan ( N = 2 )
Mar ( N = 1782 )
Apr ( N = 2188 )
May ( N = 2233 )
Jun ( N = 2170 )
Jul ( N = 2245 )
Aug ( N = 2261 )
Sep ( N = 2190 )
Oct ( N = 2251 )
Nov ( N = 2189 )
Dec ( N = 2227 )