2012, 2013, 2014的:
Size of Family 2014 2013 2012
2 persons $38,272 $37,708 $36,637
3 persons $47,051 $46,354 $45,040
4 persons $57,125 $56,280 $54,685
5 persons $64,791 $63,833 $62,023
6 persons $73,072 $71,991 $69,950
7 persons $81,355 $80,153 $77,879
If more than 7 persons, for each additional person, add $8,271 $8,148 $7,929
2015的估计在2014的基础上加一千多吧