diff --git a/backend/src/api/statistics.ts b/backend/src/api/statistics.ts
index 9a53e3504..5c66153c8 100644
--- a/backend/src/api/statistics.ts
+++ b/backend/src/api/statistics.ts
@@ -270,47 +270,47 @@ class Statistics {
 
   private getQueryForDaysAvg(div: number, interval: string) {
     return `SELECT id, UNIX_TIMESTAMP(added) as added,
-      CAST(avg(unconfirmed_transactions) as FLOAT) as unconfirmed_transactions,
-      CAST(avg(tx_per_second) as FLOAT) as tx_per_second,
-      CAST(avg(vbytes_per_second) as FLOAT) as vbytes_per_second,
-      CAST(avg(vsize_1) as FLOAT) as vsize_1,
-      CAST(avg(vsize_2) as FLOAT) as vsize_2,
-      CAST(avg(vsize_3) as FLOAT) as vsize_3,
-      CAST(avg(vsize_4) as FLOAT) as vsize_4,
-      CAST(avg(vsize_5) as FLOAT) as vsize_5,
-      CAST(avg(vsize_6) as FLOAT) as vsize_6,
-      CAST(avg(vsize_8) as FLOAT) as vsize_8,
-      CAST(avg(vsize_10) as FLOAT) as vsize_10,
-      CAST(avg(vsize_12) as FLOAT) as vsize_12,
-      CAST(avg(vsize_15) as FLOAT) as vsize_15,
-      CAST(avg(vsize_20) as FLOAT) as vsize_20,
-      CAST(avg(vsize_30) as FLOAT) as vsize_30,
-      CAST(avg(vsize_40) as FLOAT) as vsize_40,
-      CAST(avg(vsize_50) as FLOAT) as vsize_50,
-      CAST(avg(vsize_60) as FLOAT) as vsize_60,
-      CAST(avg(vsize_70) as FLOAT) as vsize_70,
-      CAST(avg(vsize_80) as FLOAT) as vsize_80,
-      CAST(avg(vsize_90) as FLOAT) as vsize_90,
-      CAST(avg(vsize_100) as FLOAT) as vsize_100,
-      CAST(avg(vsize_125) as FLOAT) as vsize_125,
-      CAST(avg(vsize_150) as FLOAT) as vsize_150,
-      CAST(avg(vsize_175) as FLOAT) as vsize_175,
-      CAST(avg(vsize_200) as FLOAT) as vsize_200,
-      CAST(avg(vsize_250) as FLOAT) as vsize_250,
-      CAST(avg(vsize_300) as FLOAT) as vsize_300,
-      CAST(avg(vsize_350) as FLOAT) as vsize_350,
-      CAST(avg(vsize_400) as FLOAT) as vsize_400,
-      CAST(avg(vsize_500) as FLOAT) as vsize_500,
-      CAST(avg(vsize_600) as FLOAT) as vsize_600,
-      CAST(avg(vsize_700) as FLOAT) as vsize_700,
-      CAST(avg(vsize_800) as FLOAT) as vsize_800,
-      CAST(avg(vsize_900) as FLOAT) as vsize_900,
-      CAST(avg(vsize_1000) as FLOAT) as vsize_1000,
-      CAST(avg(vsize_1200) as FLOAT) as vsize_1200,
-      CAST(avg(vsize_1400) as FLOAT) as vsize_1400,
-      CAST(avg(vsize_1600) as FLOAT) as vsize_1600,
-      CAST(avg(vsize_1800) as FLOAT) as vsize_1800,
-      CAST(avg(vsize_2000) as FLOAT) as vsize_2000 \
+      CAST(avg(unconfirmed_transactions) as DOUBLE) as unconfirmed_transactions,
+      CAST(avg(tx_per_second) as DOUBLE) as tx_per_second,
+      CAST(avg(vbytes_per_second) as DOUBLE) as vbytes_per_second,
+      CAST(avg(vsize_1) as DOUBLE) as vsize_1,
+      CAST(avg(vsize_2) as DOUBLE) as vsize_2,
+      CAST(avg(vsize_3) as DOUBLE) as vsize_3,
+      CAST(avg(vsize_4) as DOUBLE) as vsize_4,
+      CAST(avg(vsize_5) as DOUBLE) as vsize_5,
+      CAST(avg(vsize_6) as DOUBLE) as vsize_6,
+      CAST(avg(vsize_8) as DOUBLE) as vsize_8,
+      CAST(avg(vsize_10) as DOUBLE) as vsize_10,
+      CAST(avg(vsize_12) as DOUBLE) as vsize_12,
+      CAST(avg(vsize_15) as DOUBLE) as vsize_15,
+      CAST(avg(vsize_20) as DOUBLE) as vsize_20,
+      CAST(avg(vsize_30) as DOUBLE) as vsize_30,
+      CAST(avg(vsize_40) as DOUBLE) as vsize_40,
+      CAST(avg(vsize_50) as DOUBLE) as vsize_50,
+      CAST(avg(vsize_60) as DOUBLE) as vsize_60,
+      CAST(avg(vsize_70) as DOUBLE) as vsize_70,
+      CAST(avg(vsize_80) as DOUBLE) as vsize_80,
+      CAST(avg(vsize_90) as DOUBLE) as vsize_90,
+      CAST(avg(vsize_100) as DOUBLE) as vsize_100,
+      CAST(avg(vsize_125) as DOUBLE) as vsize_125,
+      CAST(avg(vsize_150) as DOUBLE) as vsize_150,
+      CAST(avg(vsize_175) as DOUBLE) as vsize_175,
+      CAST(avg(vsize_200) as DOUBLE) as vsize_200,
+      CAST(avg(vsize_250) as DOUBLE) as vsize_250,
+      CAST(avg(vsize_300) as DOUBLE) as vsize_300,
+      CAST(avg(vsize_350) as DOUBLE) as vsize_350,
+      CAST(avg(vsize_400) as DOUBLE) as vsize_400,
+      CAST(avg(vsize_500) as DOUBLE) as vsize_500,
+      CAST(avg(vsize_600) as DOUBLE) as vsize_600,
+      CAST(avg(vsize_700) as DOUBLE) as vsize_700,
+      CAST(avg(vsize_800) as DOUBLE) as vsize_800,
+      CAST(avg(vsize_900) as DOUBLE) as vsize_900,
+      CAST(avg(vsize_1000) as DOUBLE) as vsize_1000,
+      CAST(avg(vsize_1200) as DOUBLE) as vsize_1200,
+      CAST(avg(vsize_1400) as DOUBLE) as vsize_1400,
+      CAST(avg(vsize_1600) as DOUBLE) as vsize_1600,
+      CAST(avg(vsize_1800) as DOUBLE) as vsize_1800,
+      CAST(avg(vsize_2000) as DOUBLE) as vsize_2000 \
       FROM statistics \
       WHERE added BETWEEN DATE_SUB(NOW(), INTERVAL ${interval}) AND NOW() \
       GROUP BY UNIX_TIMESTAMP(added) DIV ${div} \
@@ -320,7 +320,7 @@ class Statistics {
   private getQueryForDays(div: number, interval: string) {
     return `SELECT id, UNIX_TIMESTAMP(added) as added, unconfirmed_transactions,
       tx_per_second,
-      CAST(avg(vbytes_per_second) as FLOAT) as vbytes_per_second,
+      CAST(avg(vbytes_per_second) as DOUBLE) as vbytes_per_second,
       vsize_1,
       vsize_2,
       vsize_3,