Add table for period statistics, and see what happens re: performance.

app/Models/PeriodStatistic.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace FireflyIII\Models;
+
+use FireflyIII\Casts\SeparateTimezoneCaster;
+use FireflyIII\Support\Models\ReturnsIntegerUserIdTrait;
+use Illuminate\Database\Eloquent\Casts\Attribute;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\MorphTo;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class PeriodStatistic extends Model
+{
+    use SoftDeletes;
+    use ReturnsIntegerUserIdTrait;
+
+    protected function casts(): array
+    {
+        return [
+            'created_at'    => 'datetime',
+            'updated_at'    => 'datetime',
+            'deleted_at'    => 'datetime',
+            'date'          => SeparateTimezoneCaster::class,
+        ];
+    }
+
+    protected function count(): Attribute
+    {
+        return Attribute::make(
+            get: static fn ($value) => (int)$value,
+        );
+    }
+
+
+    public function primaryStatable(): MorphTo
+    {
+
+        return $this->morphTo();
+
+    }
+
+    public function secondaryStatable(): MorphTo
+    {
+
+        return $this->morphTo();
+
+    }
+    public function tertiaryStatable(): MorphTo
+    {
+
+        return $this->morphTo();
+
+    }
+
+    //
+}