The figures represent a variance from the previous data of 0.3 which sits right at the norm for annual benchmark adjustments which are typically up or down by 0.3 percent.
When we see that actually recent summers are on average hotter than earlier summers then we might start to think about trends, not just the variance that comes from more data.
When you square that figure, you get 0.55, essentially delivering a message that the reams of published, endlessly analyzed batting data together explain only a shade more than half of the variance in salaries.