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Junk bonds , which mushroomed from less than $ 2 billion at the start of this decade , have been declining for months as issuer after issuer sank beneath the weight of hefty interest payments .
 money: less than $ 2 billion; date: the start of this decade; date: months
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 money: less than $ 2 billion; date: the start of this decade; date: months