Using the Data Below About How Many Airline Miles Each

Using the data below about how many airline miles each participant accrued over the span of the year
$$\begin{array} { c c } \text { No. of miles } & f \\0 - 4999 & 241 \\5000 - 9999 & 452 \\10000 - 14999 & 540 \\15000 - 19999 & 869 \\20000 - 24999 & 823 \\25000 - 29999 & 972 \\30000 - 34999 & 1004 \\35000 - 39999 & 1138 \\40000 - 44999 & 1034 \\45000 - 49999 & 1497 \\50000 - 54999 & 1429 \\55000 - 59999 & 1471 \\60000 - 64999 & 1365 \\65000 - 69999 & 1372 \\70000 - 74999 & 1241 \\75000 - 79999 & 821 \\80000 - 84999 & 624 \\85000 - 89999 & 246 \\90000 - 94999 & 168 \\95000 - 99999 & 34\end{array}$$ how many people in this data set flew between 20000 and 59999 miles in the last year?