fsize	income
2	44,056
2	50,574
2	51,356
2	41,603
2	44,592
2	48,479
2	43,298
3	47,637
3	53,424
3	56,237
3	46,758
3	49,271
3	56,621
3	52,262
4	52,432
4	60,251
4	63,286
4	52,689
4	56,029
4	64,042
4	57,884
5	47,963
5	52,907
5	59,653
5	51,068
5	52,460
5	62,156
5	56,824
6	46,157
6	49,707
6	57,259
6	49,199
6	50,966
6	59,606
6	55,085