Year

Everyday

3 - 6 times/week

1 - 2 times/week

2 - 3 times/month

1 time/month

<1 time/month

2003

n

%

418

(3.5)

3490

(29)

4682

(38.9)

2528

(21)

697

(5.8)

224

(1.9)

2005

n

%

465

(3.8)

4916

(40.2)

4579

(37.5)

1727

(14.1)

379

(3.1)

155

(1.3)

2007

n

%

576

(4.5)

6199

(48.6)

4545

(35.7)

1199

(9.4)

165

(1.3)

63

(0.5)

2009

n

%

288

(2.2)

6477

(50.2)

4475

(34.7)

1320

(10.2)

258

(2)

98

(0.8)

2011

n

%

345

(2.7)

6016

(46.3)

5059

(38.9)

1303

(10)

226

(1.7)

53

(0.4)

2013

n

%

346

(2.7)

6011

(46.3)

5052

(38.9)

1298

(10)

229

(1.8)

52

(0.4)