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1.Although the popular belief i that , a current tudy indicate that
2.Common ene tell u that
3.The increae in mainly reult from
4.The increae in i due to the fact that
5.Many people would claim that
6.One may attribute the increae to , but i not by itelf an adequate explanation.
7.One of the reaon given for i that
8.What i alo worth noticing i that
9.There are many caue for thi dramatic growth in .. Firt, Second, Finally,
10.There i no evidence to ugget that
11.Why are ? For one thing, For another,
12.Another reaon why I dipute the above tatement i that
13.It give rie to a hot of problem .
14.There are numerou reaon why , and I hall here explore only a few of the mot important one.
15.It will exert profound effect on
16.A multitude of factor could account for the change in
17.In 1999, it increaed from 5 to 10 percent of the total .