Jan ( N = 130 )
Feb ( N = 65 )
Mar ( N = 198 )
Apr ( N = 348 )
May ( N = 403 )
Jun ( N = 390 )
Jul ( N = 403 )
Aug ( N = 401 )
Sep ( N = 208 )
Jan ( N = 42 )
Feb ( N = 144 )
Mar ( N = 248 )
Apr ( N = 386 )
May ( N = 404 )
Jun ( N = 480 )
Jul ( N = 493 )
Aug ( N = 496 )
Sep ( N = 480 )
Oct ( N = 495 )
Nov ( N = 345 )
Dec ( N = 110 )
Jan ( N = 80 )
Feb ( N = 98 )
Mar ( N = 269 )
Apr ( N = 469 )
May ( N = 481 )
Jun ( N = 478 )
Jul ( N = 481 )
Aug ( N = 493 )
Sep ( N = 479 )
Oct ( N = 399 )
Nov ( N = 202 )
Dec ( N = 14 )
Jun ( N = 241 )
Jul ( N = 493 )
Aug ( N = 496 )
Sep ( N = 476 )
Oct ( N = 490 )
Nov ( N = 478 )
Dec ( N = 216 )
Aug ( N = None )