let data = [
 {
   "city": "Istanbul",
   "squareMetres": 98,
   "showByDefault": false
 },
 {
   "city": "Melbourne",
   "squareMetres": 90,
   "showByDefault": true
 },
 {
   "city": "Beijing",
   "squareMetres": 66,
   "showByDefault": true
 },
 {
   "city": "Paris",
   "squareMetres": 46,
   "showByDefault": true
 },
 {
   "city": "New York",
   "squareMetres": 25,
   "showByDefault": false
 },
 {
   "city": "Monaco",
   "squareMetres": 16,
   "showByDefault": true
 },
 {
   "city": "Hong Kong",
   "squareMetres": 22,
   "showByDefault": true
 },
 {
   "city": "London",
   "squareMetres": 28,
   "showByDefault": false
 },
 {
   "city": "Singapore",
   "squareMetres": 39,
   "showByDefault": true
 },
 {
   "city": "Geneva",
   "squareMetres": 41,
   "showByDefault": false
 },
 {
   "city": "Sydney",
   "squareMetres": 48,
   "showByDefault": false
 },
 {
   "city": "Tokyo",
   "squareMetres": 76,
   "showByDefault": false
 },
 {
   "city": "Shanghai",
   "squareMetres": 54,
   "showByDefault": true
 },
 {
   "city": "Los Angeles",
   "squareMetres": 58,
   "showByDefault": false
 },
 {
   "city": "Berlin",
   "squareMetres": 77,
   "showByDefault": false
 },
 {
   "city": "Miami",
   "squareMetres": 78,
   "showByDefault": false
 },
 {
   "city": "Mumbai",
   "squareMetres": 92,
   "showByDefault": false
 },
 {
   "city": "Dubai",
   "squareMetres": 138,
   "showByDefault": true
 },
 {
   "city": "Sao Paulo",
   "squareMetres": 173,
   "showByDefault": true
 },
 {
   "city": "Cape Town",
   "squareMetres": 157,
   "showByDefault": true
 }
]