Most contracts work like this. In your example (at 5 years of service) you would receive $75.77 per flight hour.

Years:
0 to 1= $ XX.XX
1 to 2= $ XX.XX
2 to 3= $ XX.XX
3 to 4= $ XX.XX
4 to 5= $ XX.XX
5 to 6= $ 75.77