11.5	18.7	15	17.6	12.4	21	14.4	15.2	16.9	14.5
16.2	14.1	15.7	16	15.7	13.1	15.2	18	15.1	19.6
18.1	14.7	16.4	13.8	18.8	15.5	17.6	16.8	15.2	13.7