add more important node stats (#82)

pkg/printer/cast.go

@@ -38,12 +38,16 @@ func any2string(in any) string {
 		return strconv.Itoa(val)
 	case float64:
 		return fmt.Sprintf("%.2f", val)
+	case float32:
+		return fmt.Sprintf("%.2f", val)
 	case []string:
 		return strings.Join(val, ",")
 	case ByteSize:
 		return val.String()
 	case time.Time:
 		return val.Format("2006-01-02 15:04:05")
+	case time.Duration:
+		return val.String()
 	case []byte:
 		return string(val)
 	case nil: