tokens: Forecasting by BSTS revealed an increase in MS prevalence for the next ten years so that the prevalence rate for total , familial and sporadic MS respectively begins with 189.50 ( 183.94 - 195.14 ) , 25.69 ( 24.97 - 26.45 ) and 163.74 ( 159.06 - 168.57 ) in 2020 and ends with 220.84 ( 171.48 - 266.92 ) , 30.79 ( 24.16 - 37.15 ) , and 189.33 ( 146.97 - 230.19 ) in 2029 .