Swimming Pool Facts and Stats
Nothing says summer like a nice day at the pool. Every year millions of people take to the water to beat the heat but this is nothing new. The first drawings and paintings that show swimming pools date back to ancient Egypt. Swimming pools are big business too. The average cost of an in-ground pool is over $20,000. The average cost of an above ground pool is nearly $7,000. The US has over 10 million swimming pools and spends an astounding $1,000,000 per hour on swimming pools.
Via: http://cleanandbritepools.com/swimming-pool-facts-and-stats/