An interesting Waterfall Chart....

.... but difficult to understand.
Found at the 1st half year presentation 2017 of Munich Re.

The waterfall belongs to which data series: left or right?

https://www.munichre.com/site/corporate/get/params_E-563364641_Dattachment/1574690/MunichRe-IR-Half-year-financial-report-2017.pdf