user: Question: HOW MUCH IS THE PERCENTAGE OF GLOBAL TOTAL EMISSIONS IN THE COUNTRY THAT PRODUCED 4.9 TONS PER PERSON IN 2007?
Columns: ['Country', 'Carbon dioxide emissions per year (10 6 Tons) (2006)', 'Percentage of global total', 'Avg. emission per km 2 of its land (tons)', 'Carbon dioxide emissions per year (Tons per person) (2007)']
Types: ['text', 'real', 'text', 'real', 'text']
Sample row: ['China', 6103.0, '21.5%', 636.0, '4.9']
SQL:

assistant: SELECT "Percentage of global total" FROM "Table" WHERE "Carbon dioxide emissions per year (Tons per person) (2007)" = '4.9';