Beware of correlation.

The only correlation index that is conclusive is zero.

A correlation index of 1 is trivial, the data is the same; two connections to the same pair of wires if you will; the answer already obvious.

Remember that Americans do not wear an extra layer of cloths because people in the UK are cold. Drawing conclusions from correlation is only meaningful to politicians. Politicians do not need any understanding or talent; all they need is votes