Variable

1

2

3

4

5

6

7

Do not know

Mean

Std. dev

TCO

34

4%

32

3%

88

9%

166

17%

232

24%

232

24%

189

19%

7

1%

5.00

1.60

Purchasing Price

13

1%

18

2%

54

6%

141

14%

236

24%

266

27%

248

25%

4

0%

5.40

1.40