You have 14 too many repetitions. Think about using a related field to store this data.
In addition to 14-too-many repetitions, you have an infinite shortage of repetitions if there is any chance on earth (there always is) that 15 wouldn't be enough to handle all possible future needs.
Rhlilienkamp is right, going with a related record system solves both the too-many and too-few reps issue.
Use repeating fields only when you both already know exactly how many reps you must have and a related field won't work. Repeating fields have some proper uses, but all too often they are used because the relational data model is being compromised.
(Historically, FileMaker went through an early phase where repetitions were available but true related records weren't yet supported, and repeating fields still get used in that way, but they shouldn't.)