Abbreviations on charts

[Gary_D]

Mr. Prien,

I'm reading through volume 9 part III about JG 5, and I have some questions about the charts.

In the victory charts, what does N.N. mean?

And why, when there is a known pilot, is the victory number sometimes still ( .)?

In the loss charts, what do the various abbreviations in the last column mean, i.e.

rt. 2 +
rt. 4 +
ws. 9 +
ws. 9 + 1
ge. 11 +
ge.10 + 1
sw. << + 1
PD + EG
etcetera.

Again in in the loss charts, column 4 shows the status of the pilot. I assume that a cross means dead, verw. means wounded, and verl. means missing, but what do these mean?

(v.)
v.
KG
(KG)

Thank you.