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The incident echoes the WannaCry ransomware attack which infected an estimated 200,000 computers globally last year , including up to 70,000 in the NHS .
 infected an estimated 200,000 computers: attack pattern; last year: time
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: ransom 
  Option: victim, attacker, payment method, attack pattern, damage amount, tool, time, price, place 
Text: {0} 
Answer:
 infected an estimated 200,000 computers: attack pattern; last year: time