Taking all these factors into account and assuming current market conditions, we expect our 2022 personnel to be approximately $1,600,000,000 to $1,700,000,000 up approximately 7% at the midpoint Compared to our 2021 total of $1,540,000,000 Moving on to SG and A expenses. Q4 percent compared to Q4 of 2020, primarily due to higher technology related purchase services And travel expenses, for 2022, we expect total SG and A expenses to be $550,000,000 to $600,000,000 compared to $526,000,000 for 2021. The approximately 9% increase at the midpoint It's primarily due to a higher level of spending as we expect travel spending to return to approximately half of our pre pandemic levels. 2022 SG and A expenses are expected to include approximately $100,000,000 of depreciation and amortization compared to $91,000,000 in 20 4th quarter interest and other expense totaled $18,400,000 up approximately 6 $400,000 versus Q4 last year due primarily to the impact of currency revaluation. Q4 results included a $6,500,000 loss on currency revaluation compared to a $1,100,000 gain in Q4 last year.