The number of visitors at a theme park by season and year has been recorded and is given in the following table:
Quarter 2003 2004 2005 2006
Winter 45 46 35 16
Spring 50 49 44 12
Summer 43 47 13 13
Fall 13 25 19 19
Compute seasonal index for Fall using all of the data. Specify using 2 decimal digits.