* Consumer price index jumps 1.3% in June
* Year-on-year CPI soars 9.1%, largest gain since 1981
* Core CPI increases 0.7%; up 5.9% on year-on-year basis
* Consumer price index jumps 1.3% in June
* Year-on-year CPI soars 9.1%, largest gain since 1981
* Core CPI increases 0.7%; up 5.9% on year-on-year basis