diff --git a/app/Contribution/Data/MemberData.php b/app/Contribution/Data/MemberData.php
index b562b421..b5882564 100644
--- a/app/Contribution/Data/MemberData.php
+++ b/app/Contribution/Data/MemberData.php
@@ -72,9 +72,9 @@ class MemberData extends Data
         return $this->zip . ' ' . $this->location;
     }
 
-    public function age(): string
+    public function age(): int
     {
-        return $this->birthday ? intval($this->birthday->diffInYears(now())) : '';
+        return intval($this->birthday->diffInYears(now()));
     }
 
     public function birthYear(): string
diff --git a/app/Contribution/Documents/RdpNrwDocument.php b/app/Contribution/Documents/RdpNrwDocument.php
index 248e21e7..1672d6d1 100644
--- a/app/Contribution/Documents/RdpNrwDocument.php
+++ b/app/Contribution/Documents/RdpNrwDocument.php
@@ -3,14 +3,15 @@
 namespace App\Contribution\Documents;
 
 use App\Contribution\Data\MemberData;
+use App\Contribution\Traits\FormatsDates;
 use App\Contribution\Traits\HasPdfBackground;
 use App\Country;
-use Carbon\Carbon;
 use Illuminate\Support\Collection;
 
 class RdpNrwDocument extends ContributionDocument
 {
     use HasPdfBackground;
+    use FormatsDates;
 
     /**
      * @param Collection<int, Collection<int, MemberData>> $members
@@ -28,13 +29,6 @@ class RdpNrwDocument extends ContributionDocument
         $this->setEventName($eventName);
     }
 
-    public function dateRange(): string
-    {
-        return Carbon::parse($this->dateFrom)->format('d.m.Y')
-            . ' - '
-            . Carbon::parse($this->dateUntil)->format('d.m.Y');
-    }
-
     /**
      * {@inheritdoc}
      */
@@ -70,35 +64,6 @@ class RdpNrwDocument extends ContributionDocument
         return $this->country->name;
     }
 
-    public function memberShort(MemberData $member): string
-    {
-        return $member->isLeader ? 'L' : '';
-    }
-
-    public function memberName(MemberData $member): string
-    {
-        return $member->separatedName();
-    }
-
-    public function memberAddress(MemberData $member): string
-    {
-        return $member->fullAddress();
-    }
-
-    public function memberGender(MemberData $member): string
-    {
-        if (!$member->gender) {
-            return '';
-        }
-
-        return strtolower(substr($member->gender->name, 0, 1));
-    }
-
-    public function memberAge(MemberData $member): string
-    {
-        return $member->age();
-    }
-
     public static function getName(): string
     {
         return 'RdP NRW';
diff --git a/app/Contribution/Traits/FormatsDates.php b/app/Contribution/Traits/FormatsDates.php
index bc2f9360..242e7436 100644
--- a/app/Contribution/Traits/FormatsDates.php
+++ b/app/Contribution/Traits/FormatsDates.php
@@ -16,4 +16,9 @@ trait FormatsDates
     {
         return Carbon::parse($this->dateUntil)->format('d.m.Y');
     }
+
+    public function dateRange(): string
+    {
+        return implode(' - ', [$this->niceDateFrom(), $this->niceDateUntil()]);
+    }
 }
diff --git a/resources/views/tex/contribution/rdp-nrw.tex b/resources/views/tex/contribution/rdp-nrw.tex
index f5c907db..362d433e 100644
--- a/resources/views/tex/contribution/rdp-nrw.tex
+++ b/resources/views/tex/contribution/rdp-nrw.tex
@@ -23,11 +23,11 @@
 
 @foreach($chunk as $i => $member)
     \node[anchor=base, text width=7.75mm, align=center] at ($(16.35mm, 76.6mm + 7mm * <<<$i % 17>>>)$) {<<<$i+1>>>};
-    \node[anchor=base, text width=18mm, align=center] at ($(32.55mm, 76.6mm + 7mm * <<<$i%17>>>)$) {<<<$memberShort($member)>>>};
-    \node[anchor=base, text width=70mm, align=center] at ($(80.25mm, 76.6mm + 7mm * <<<$i%17>>>)$) {<<<$memberName($member)>>>};
-    \node[anchor=base, text width=118mm, align=center] at ($(178.25mm, 76.6mm + 7mm * <<<$i%17>>>)$) {<<<$memberAddress($member)>>>};
-    \node[anchor=base, text width=16mm, align=center] at ($(249.50mm, 76.6mm + 7mm * <<<$i%17>>>)$) {<<<$memberGender($member)>>>};
-    \node[anchor=base, text width=16mm, align=center] at ($(269.50mm, 76.6mm + 7mm * <<<$i%17>>>)$) {<<<$memberAge($member)>>>};
+    \node[anchor=base, text width=18mm, align=center] at ($(32.55mm, 76.6mm + 7mm * <<<$i%17>>>)$) {<<<$member->isLeader ? 'L' : ''>>>};
+    \node[anchor=base, text width=70mm, align=center] at ($(80.25mm, 76.6mm + 7mm * <<<$i%17>>>)$) {<<<$member->separatedName()>>>};
+    \node[anchor=base, text width=118mm, align=center] at ($(178.25mm, 76.6mm + 7mm * <<<$i%17>>>)$) {<<<$member->fullAddress()>>>};
+    \node[anchor=base, text width=16mm, align=center] at ($(249.50mm, 76.6mm + 7mm * <<<$i%17>>>)$) {<<<$member->genderLetter()>>>};
+    \node[anchor=base, text width=16mm, align=center] at ($(269.50mm, 76.6mm + 7mm * <<<$i%17>>>)$) {<<<$member->age()>>>};
 @endforeach
 
 \end{tikzpicture}