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 Strat-trop exchange in 14.3.0-rc.0 for year 2019
 (i.e. species flux across 100 hPa)

 Units: Tg/yr

 Annual mean is weighted by the number of days per month
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                     O3
Jan 2019       839.8620
Feb 2019       744.7656
Mar 2019       530.3778
Apr 2019       572.8009
May 2019       383.9447
Jun 2019       397.2969
Jul 2019       403.8206
Aug 2019       536.0938
Sep 2019       689.4851
Oct 2019       527.9449
Nov 2019       665.1584
Dec 2019       480.0132
Annual Mean    562.6286