diff --git a/api/@ohos.net.statistics.d.ts b/api/@ohos.net.statistics.d.ts
index 84fed33d04044631d44acc2b8085fbbfac8e201b..1137f71c7b217899afaf4a8defd58462f23917fe 100644
--- a/api/@ohos.net.statistics.d.ts
+++ b/api/@ohos.net.statistics.d.ts
@@ -346,7 +346,8 @@ declare namespace statistics {
    * @throws { BusinessError } 2100003 - System internal error.
    * @syscap SystemCapability.Communication.NetManager.Core
    * @systemapi Hide this for inner system use.
-   * @since 11
+   * @since arkts {'1.1':'11','1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function on(type: 'netStatsChange', callback: Callback<NetStatsChangeInfo>): void;
 
@@ -376,7 +377,8 @@ declare namespace statistics {
    * @throws { BusinessError } 2100003 - System internal error.
    * @syscap SystemCapability.Communication.NetManager.Core
    * @systemapi Hide this for inner system use.
-   * @since 11
+   * @since arkts {'1.1':'11','1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function off(type: 'netStatsChange', callback?: Callback<NetStatsChangeInfo>): void;
 
@@ -707,6 +709,15 @@ declare namespace statistics {
     [uid: int]: NetStatsInfo;
   };
 
+  /**
+   * {@link NetStatsInfo} for every UID. Key is UID.
+   * @syscap SystemCapability.Communication.NetManager.Core
+   * @systemapi Hide this for inner system use.
+   * @since 20
+   * @arkts 1.2
+   */
+  export type UidNetStatsInfo = Record<int, NetStatsInfo>;
+
   /**
    * Parameters for obtaining detailed information on specified network traffic usage.
    * @interface NetworkInfo
@@ -768,7 +779,8 @@ declare namespace statistics {
    * @throws { BusinessError } 2103017 - Failed to read the database.
    * @syscap SystemCapability.Communication.NetManager.Core
    * @systemapi Hide this for inner system use.
-   * @since 12
+   * @since arkts {'1.1':'12','1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function getTrafficStatsByNetwork(networkInfo: NetworkInfo): Promise<UidNetStatsInfo>;
   /**