Added Statistics calculation

Statistics now show calculated values

node_modules/dayjs/esm/plugin/weekYear/index.js

@@ -0,0 +1,19 @@
+export default (function (o, c) {
+  var proto = c.prototype;
+
+  proto.weekYear = function () {
+    var month = this.month();
+    var weekOfYear = this.week();
+    var year = this.year();
+
+    if (weekOfYear === 1 && month === 11) {
+      return year + 1;
+    }
+
+    if (month === 0 && weekOfYear >= 52) {
+      return year - 1;
+    }
+
+    return year;
+  };
+});