average penetration rate in a sentence

1. For mobile phones, he said, the national average penetration rate is 3.5 lines per 100 population.
2. For mobile phones, he said, the national average penetration rate is 3 . 5 lines per 100 population.
3. According to Swedish telecommunications outfit Ericsson Radio Systems AB, the region has an average penetration rate of 0.8 per cent while Japan, Australia and the United States have 19 per cent each.
4. According to Swedish telecommunications outfit Ericsson Radio Systems AB, the region has an average penetration rate of 0 . 8 per cent while Japan, Australia and the United States have 19 per cent each.
5. Netia officials estimate Poland needs to install 12 million new lines to meet Europe's average penetration rate of 42 lines per 100 people, a decade-long task at TPSA's current pace of 500, 000 to 600, 000 new lines per year.
6. It's difficult to find average penetration rate in a sentence.