Get system statistics

Example response

{
  "hosting_accounts": {
    "total": 150,
    "active": 145,
    "suspended": 5
  },
  "domains": {
    "total": 320,
    "main_domains": 150,
    "addon_domains": 120,
    "subdomains": 50
  },
  "databases": {
    "total": 280
  },
  "resellers": {
    "total": 12,
    "active": 10
  },
  "servers": {
    "total": 5,
    "active": 4,
    "connected": 3
  }
}