One per new born child on average. That comes out to 4,315,000 in 2007.
Too many.
It is estimated to be 15000 births per hour in the United States.
Spina bifida is one of the most common birth defects, with an average worldwide incidence of 1-2 cases per 1000 births... Approximately 1500 births of babies with Spina Bifida occur in the US each year...
About 4 million per year. See the Related Link.
Average work days per year in the US is about 260.
Approximately 11,000 babies are born every day in the United States. This number can vary slightly day to day but averages out to around 4 million births per year in the country.
tornados hit the U.S. on average 1200 per year
10,000 per year average
The average co2 emission per year for a car in the USA. is 11,450 pounds
About 1200
The average income in the US in 1999 was around $40,000 per year.
12,000 is the average expected on a car. If it has more then 12,000 per year, it is considered excessive.That depends where you're at. In the US average mileage is considered 15,000 per year.