1. Graph indicating the birth of twins: The x-axis is the year going from 1980 to 2005 in increments of 5. The y-axis is the rate per 1000 births going from 10 to 40 in increments of 10. The birth of twins has increased from 18 in 1980 to 30 plus in 2005.
2. Graph indicating the birth of triplets or more: The x-axis is the year going from 1980 to 2005 in increments of five. The y-axis is the rate per 100,000 births going from zero to 200 in increments of 40. The birth rate has increased from 40 in 1980 to 160 plus in 2000 and reduced to 160 in 2005.