[bergjs]

"Als" is not correct here. It should be "Da wir die Umfrage 2016 abschließen ..."

In the second example it should be "... dass die LW-Gemeinde in der Bevölkerung nicht sank sondern eher in verschiedene Gemeinden abgewandert ist." But I'm having a hard time translating "so much as" in this context to German.

[MagnumOpus]

"Not X so much as Y" is pretty much always be translated as "Nicht X sondern Y". "Sondern" should be used here.