diff --git a/internal/orderedmap/orderedmap.go b/internal/orderedmap/orderedmap.go
index 15e2ec0..0b3009d 100644
--- a/internal/orderedmap/orderedmap.go
+++ b/internal/orderedmap/orderedmap.go
@@ -6,10 +6,10 @@ import (
 
 type pair struct {
 	Key   string
-	Value int
+	Value float32
 }
 
-// OrderedMap is a map like type with string keys and int values.
+// OrderedMap is a slice of pairs type with string keys and float values.
 // It implement sorting methods by values.
 type OrderedMap []pair
 
diff --git a/internal/orderedmap/orderedmap_test.go b/internal/orderedmap/orderedmap_test.go
index a178c9e..7efb6f9 100644
--- a/internal/orderedmap/orderedmap_test.go
+++ b/internal/orderedmap/orderedmap_test.go
@@ -9,11 +9,11 @@ var testOrderedMap OrderedMap
 
 func init() {
 	testOrderedMap = OrderedMap{
-		{"test1", 5},
-		{"test2", 2},
-		{"test3", 4},
-		{"test4", 3},
-		{"test5", 6},
+		{"test1", 5.0},
+		{"test2", 2.0},
+		{"test3", 4.0},
+		{"test4", 3.0},
+		{"test5", 6.0},
 	}
 }