diff --git a/lib/src/prices/price_total_stats.dart b/lib/src/prices/price_total_stats.dart
index aa8b1f3094..cbcf35929e 100644
--- a/lib/src/prices/price_total_stats.dart
+++ b/lib/src/prices/price_total_stats.dart
@@ -1,74 +1,75 @@
-import 'package:json_annotation/json_annotation.dart';
-
-import '../interface/json_object.dart';
 import '../utils/json_helper.dart';
 
-part 'price_total_stats.g.dart';
-
 /// Total stats for Prices.
 ///
 /// cf. `TotalStats` in https://prices.openfoodfacts.org/api/docs
-@JsonSerializable()
-class PriceTotalStats extends JsonObject {
-  @JsonKey(name: 'price_count')
-  int? priceCount;
-
-  @JsonKey(name: 'price_type_product_code_count')
-  int? priceTypeProductCodeCount;
-
-  @JsonKey(name: 'price_type_category_tag_count')
-  int? priceTypeCategoryTagCount;
-
-  @JsonKey(name: 'product_count')
-  int? productCount;
-
-  @JsonKey(name: 'product_with_price_count')
-  int? productWithPriceCount;
-
-  @JsonKey(name: 'location_count')
-  int? locationCount;
-
-  @JsonKey(name: 'location_with_price_count')
-  int? locationWithPriceCount;
-
-  @JsonKey(name: 'location_type_osm_count')
-  int? locationTypeOsmCount;
-
-  @JsonKey(name: 'location_type_online_count')
-  int? locationTypeOnlineCount;
-
-  @JsonKey(name: 'proof_count')
-  int? proofCount;
-
-  @JsonKey(name: 'proof_with_price_count')
-  int? proofWithPriceCount;
-
-  @JsonKey(name: 'proof_type_price_tag_count')
-  int? proofTypePriceTagCount;
-
-  @JsonKey(name: 'proof_type_receipt_count')
-  int? proofTypeReceiptCount;
-
-  @JsonKey(name: 'proof_type_gdpr_request_count')
-  int? proofTypeGdprRequestCount;
-
-  @JsonKey(name: 'proof_type_shop_import_count')
-  int? proofTypeShopImportCount;
-
-  @JsonKey(name: 'user_count')
-  int? userCount;
-
-  @JsonKey(name: 'user_with_price_count')
-  int? userWithPriceCount;
-
-  @JsonKey(fromJson: JsonHelper.nullableStringTimestampToDate)
-  DateTime? updated;
-
-  PriceTotalStats();
-
-  factory PriceTotalStats.fromJson(Map<String, dynamic> json) =>
-      _$PriceTotalStatsFromJson(json);
-
-  @override
-  Map<String, dynamic> toJson() => _$PriceTotalStatsToJson(this);
+class PriceTotalStats {
+  final Map<String, dynamic> json;
+
+  PriceTotalStats(this.json);
+
+  factory PriceTotalStats.fromJson(Map<String, dynamic> json) {
+    return PriceTotalStats(json);
+  }
+
+  int? get priceCount => getInt('price_count');
+  int? get priceTypeProductCodeCount => getInt('price_type_product_code_count');
+  int? get priceTypeCategoryTagCount => getInt('price_type_category_tag_count');
+  int? get priceWithDiscountCount => getInt('price_with_discount_count');
+  int? get priceCurrencyCount => getInt('price_currency_count');
+  int? get priceYearCount => getInt('price_year_count');
+  int? get priceLocationCountryCount => getInt('price_location_country_count');
+  int? get priceKindCommunityCount => getInt('price_kind_community_count');
+  int? get priceKindConsumptionCount => getInt('price_kind_consumption_count');
+  int? get priceSourceWebCount => getInt('price_source_web_count');
+  int? get priceSourceMobileCount => getInt('price_source_mobile_count');
+  int? get priceSourceApiCount => getInt('price_source_api_count');
+  int? get priceSourceOtherCount => getInt('price_source_other_count');
+  int? get productCount => getInt('product_count');
+  int? get productSourceOffCount => getInt('product_source_off_count');
+  int? get productSourceObfCount => getInt('product_source_obf_count');
+  int? get productSourceOpffCount => getInt('product_source_opff_count');
+  int? get productSourceOpfCount => getInt('product_source_opf_count');
+  int? get productWithPriceCount => getInt('product_with_price_count');
+  int? get productSourceOffWithPriceCount =>
+      getInt('product_source_off_with_price_count');
+  int? get productSourceObfWithPriceCount =>
+      getInt('product_source_obf_with_price_count');
+  int? get productSourceOpffWithPriceCount =>
+      getInt('product_source_opff_with_price_count');
+  int? get productSourceOpfWithPriceCount =>
+      getInt('product_source_opf_with_price_count');
+  int? get locationCount => getInt('location_count');
+  int? get locationWithPriceCount => getInt('location_with_price_count');
+  int? get locationTypeOsmCount => getInt('location_type_osm_count');
+  int? get locationTypeOnlineCount => getInt('location_type_online_count');
+  int? get locationTypeOsmCountryCount =>
+      getInt('location_type_osm_country_count');
+  int? get proofCount => getInt('proof_count');
+  int? get proofWithPriceCount => getInt('proof_with_price_count');
+  int? get proofTypePriceTagCount => getInt('proof_type_price_tag_count');
+  int? get proofTypeReceiptCount => getInt('proof_type_receipt_count');
+  int? get proofTypeGdprRequestCount => getInt('proof_type_gdpr_request_count');
+  int? get proofTypeShopImportCount => getInt('proof_type_shop_import_count');
+  int? get proofKindCommunityCount => getInt('proof_kind_community_count');
+  int? get proofKindConsumptionCount => getInt('proof_kind_consumption_count');
+  int? get proofSourceWebCount => getInt('proof_source_web_count');
+  int? get proofSourceMobileCount => getInt('proof_source_mobile_count');
+  int? get proofSourceApiCount => getInt('proof_source_api_count');
+  int? get proofSourceOtherCount => getInt('proof_source_other_count');
+  int? get priceTagCount => getInt('price_tag_count');
+  int? get priceTagStatusUnknownCount =>
+      getInt('price_tag_status_unknown_count');
+  int? get priceTagStatusLinkedToPriceCount =>
+      getInt('price_tag_status_linked_to_price_count');
+  int? get userCount => getInt('user_count');
+  int? get userWithPriceCount => getInt('user_with_price_count');
+  DateTime? get updated => getDateTime('updated');
+
+  int? getInt(String key) => json.containsKey(key) ? json[key] as int? : null;
+
+  DateTime? getDateTime(String key) =>
+      JsonHelper.nullableStringTimestampToDate(json[key]);
+
+  Map<String, dynamic> toJson() => json;
 }
diff --git a/lib/src/prices/price_total_stats.g.dart b/lib/src/prices/price_total_stats.g.dart
deleted file mode 100644
index 200d2dfe30..0000000000
--- a/lib/src/prices/price_total_stats.g.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// GENERATED CODE - DO NOT MODIFY BY HAND
-
-part of 'price_total_stats.dart';
-
-// **************************************************************************
-// JsonSerializableGenerator
-// **************************************************************************
-
-PriceTotalStats _$PriceTotalStatsFromJson(Map<String, dynamic> json) =>
-    PriceTotalStats()
-      ..priceCount = (json['price_count'] as num?)?.toInt()
-      ..priceTypeProductCodeCount =
-          (json['price_type_product_code_count'] as num?)?.toInt()
-      ..priceTypeCategoryTagCount =
-          (json['price_type_category_tag_count'] as num?)?.toInt()
-      ..productCount = (json['product_count'] as num?)?.toInt()
-      ..productWithPriceCount =
-          (json['product_with_price_count'] as num?)?.toInt()
-      ..locationCount = (json['location_count'] as num?)?.toInt()
-      ..locationWithPriceCount =
-          (json['location_with_price_count'] as num?)?.toInt()
-      ..locationTypeOsmCount =
-          (json['location_type_osm_count'] as num?)?.toInt()
-      ..locationTypeOnlineCount =
-          (json['location_type_online_count'] as num?)?.toInt()
-      ..proofCount = (json['proof_count'] as num?)?.toInt()
-      ..proofWithPriceCount = (json['proof_with_price_count'] as num?)?.toInt()
-      ..proofTypePriceTagCount =
-          (json['proof_type_price_tag_count'] as num?)?.toInt()
-      ..proofTypeReceiptCount =
-          (json['proof_type_receipt_count'] as num?)?.toInt()
-      ..proofTypeGdprRequestCount =
-          (json['proof_type_gdpr_request_count'] as num?)?.toInt()
-      ..proofTypeShopImportCount =
-          (json['proof_type_shop_import_count'] as num?)?.toInt()
-      ..userCount = (json['user_count'] as num?)?.toInt()
-      ..userWithPriceCount = (json['user_with_price_count'] as num?)?.toInt()
-      ..updated = JsonHelper.nullableStringTimestampToDate(json['updated']);
-
-Map<String, dynamic> _$PriceTotalStatsToJson(PriceTotalStats instance) =>
-    <String, dynamic>{
-      'price_count': instance.priceCount,
-      'price_type_product_code_count': instance.priceTypeProductCodeCount,
-      'price_type_category_tag_count': instance.priceTypeCategoryTagCount,
-      'product_count': instance.productCount,
-      'product_with_price_count': instance.productWithPriceCount,
-      'location_count': instance.locationCount,
-      'location_with_price_count': instance.locationWithPriceCount,
-      'location_type_osm_count': instance.locationTypeOsmCount,
-      'location_type_online_count': instance.locationTypeOnlineCount,
-      'proof_count': instance.proofCount,
-      'proof_with_price_count': instance.proofWithPriceCount,
-      'proof_type_price_tag_count': instance.proofTypePriceTagCount,
-      'proof_type_receipt_count': instance.proofTypeReceiptCount,
-      'proof_type_gdpr_request_count': instance.proofTypeGdprRequestCount,
-      'proof_type_shop_import_count': instance.proofTypeShopImportCount,
-      'user_count': instance.userCount,
-      'user_with_price_count': instance.userWithPriceCount,
-      'updated': instance.updated?.toIso8601String(),
-    };