Employer Contribution Rate

I see the contribution rate has gone up to 21.77%. You're back at the trough again. I suppose it makes your job easier when all you have to do is simply charge institutions like MSSU more. It's an unfunded mandate that puts significant financial stress on all Missouri universities.
Where can I find the contribution rates for previous years? Is it a constant upward trend with no end in sight?

Here is a link to a fact sheet on the employer contribution rates on our website. It shows the employer contribution rates from FY14 through FY20. 

After considerable deliberation, the MOSERS Board of Trustees voted to lower the assumed rate of return (ARR) on investments from 7.50% to 7.25% and intends to further reduce the ARR to 6.95% for the June 30, 2020 actuarial valuation. 

Funding for the system comes from 1) investment returns, 2) employer contributions, and 3) employee contributions (from those first employed in a benefit-eligible position on or after 1/1/2011). 

Changing the assumption about the amount of funding that will come from investments (the ARR) automatically causes employer contributions to increase and our funded status to decrease in the short term, but will work to ensure MOSERS’ sustainability over the long term.