2005
309390
494598322
100
Households
2006
306064
496436597
98.6
Households
2007
287591
498300775
92.3
Households
2008
302038
500297033
96.5
Households
2009
300200
502090235
95.6
Households
2010
320040
503170618
101.7
Households
2011
284356
502964837
90.4
Households
2012
297462
504047964
94.3
Households
2013
301258
505161863
95.3
Households
2014
265084
507011330
83.6
Households
2015
276366
508540103
86.9
Households
2016
284832
510277177
89.2
Households
2017
511522671
Households