A researcher aiming to examine the impact of organisational resilience culture $($ORC$)$ on firm productivity $($FP$)$ across the South African tourism sector collected the data presented in the table below.

Firm # $123456789101112131415$

ORC $(\%)685282612941593822738749526472$

FP $(\%)564263433635443221597643455264$

The researcher measured ORC using an Index which consolidates measures of adaptability, flexibility, leadership support, communication effectiveness, and employee empowerment. FP was measured using a multifactor tool.

What is the Pearson correlation coefficient of the researcher$$s data?