Periods	5%	6%	7%	10%
1	0.95238	0.94340	0.93458	0.90909
2	0.90703	0.89000	0.87344	0.82645
3	0.86384	0.83962	0.81630	0.75132
4	0.82270	0.79209	0.76290	0.68301
5	0.78353	0.74726	0.71299	0.62092
6	0.74622	0.70496	0.66634	0.56447
7	0.71068	0.66506	0.62275	0.51316
8	0.67684	0.62741	0.58201	0.46651
9	0.64461	0.59190	0.54393	0.42410
10	0.61391	0.55840	0.50835	0.38554

What is the pre