4th  to 5th Degree – 4 years

5th to 6th Degree – 5 years 

6th to 7th Degree – 6 years 

On getting your 7th Degree you become a Master (Expert)

7th to 8th Degree – Minimum of 7 years

8th to 9th Degree – Minimum of 8 years

On receiving your 9th you become a Grandmaster