(Bloomberg) -- China added to its gold reserves for a sixth straight month, extending a flurry of purchases as central banks around the world expand their holdings of bullion amid escalating geopolitical and economic risks.Most Read from BloombergTexas Mass Shooting’s Bloody Images Add to Fervor in Gun DebateFootball Stadiums Belong in the SuburbsBiden Trails Trump as His Approval Rating Hits Low in ABC PollBuffett Reaffirms Abel as Heir, Blames Bank Leaders for Failures‘We Just Want Someone San