Help how would I construct a relative frequency distribution

Given that the following represents the number of live births in the US in 2005 for women 15 to 44 years old .....Age.....Live Births.....
....................15-19....414,406..…
...................20-24...1,040,399..…
...................25-29...1,132,293..…
...................30-34...952,013....…
..................35-39...483,401.....…
..................40-44...104,644.....…

Population size = N = 414406+1040399+1132293+952013+483401+104… = 4127156

.Age.........fi.......................f…
15-19....414,406..…414406/4127156 = 0.1004
20-24...1,040,399..1040399/4127156 = 0.2521
25-29...1,132,293..1132293/4127156 = 0.2744
30-34...952,013......952013/4127156 = 0.2307
35-39...483,401......483401/4127156 = 0.1171
40-44...104,644......104644/4127156 = 0.0253