2.9% would be excellent if sustained. It would correspond to keeping a significant majority of the employees you want to keep for more than 10 years. That's generally quite rare.
I'm less clear on how to assess the 6.8%. It seems somewhat significant, though if you're hiring many people, that's a period where you might expect churn, as some of them don't work out.
Of course, you can't extrapolate any of this, as 2023 was a year when employees would be very averse to moving, and it was also a year when many companies were coming off of previous hiring sprees. So expect the 2.9% to eventually increase.
I'm less clear on how to assess the 6.8%. It seems somewhat significant, though if you're hiring many people, that's a period where you might expect churn, as some of them don't work out.
Of course, you can't extrapolate any of this, as 2023 was a year when employees would be very averse to moving, and it was also a year when many companies were coming off of previous hiring sprees. So expect the 2.9% to eventually increase.