foo_bin_lo foo_bin_hi foo_x_count foo_y_count
0.00000000 1.00000000 8           1
1.00000000 2.00000000 2           2
2.00000000 3.00000000 5           5
3.00000000 4.00000000 4           1
4.00000000 5.00000000 3           2
5.00000000 6.00000000 1           4
6.00000000 7.00000000 3           4
7.00000000 8.00000000 2           4
8.00000000 9.00000000 2           7
