Clutch Study: On Base % late inn AT HOME 2nd half season improvement over 1st half season

Scenario:

Compare teams "2nd half of season late inning (7th inning on) on-base % improvement over their 1st half of the season in the late innings when playing at home". How much better (or worse) did each team do during the time frames?

2004-2019: Winner St. Louis Cardinals with ZScore of 2.60

2010-2019 - MLB Winner - St Louis Cardinals with a ZScore of 1.72