How did Ryan Howard, maybe the best relative 2nd half hitter ever, do year by year?

My previous post showed that his OPS in all career 2nd half PAs was .119 higher than his first half OPS (the next biggest differential was .089, then .087, .083, etc.)

So he seems to be an outlier. Here is how he did in the first and second half for each year when he had at least 100 PAs in both halves (data from Baseball Reference)

Year	OPS1	OPS2	Diff
2006	0.923	1.259	0.336
2007	0.933	1.016	0.083
2008	0.832	0.954	0.122
2009	0.870	1.003	0.133
2010	0.859	0.858	-0.001
2011	0.828	0.845	0.017
2014	0.681	0.703	0.022
2015	0.715	0.729	0.014
2016	0.567	0.932	0.365

He had some years where he did just a bit better in the 2nd half. So he did not always improve alot. But his only negative year was just -.001. So certainly never tailed off while having some years where his gain was quite large.