Cost

r

p

Carbonated beverage, yen

1043 ± 198

0.302

0.04

Green tea, yen

1727 ± 617

0.010

0.94

Tea, yen

283 ± 89

0.145

0.33

Coffee, yen

1808 ± 290

0.088

0.55

Cocoa, yen

154 ± 24

0.192

0.20

Juice, yen

3359 ± 524

0.140

0.35

Fermented milk beverage, yen

1140 ± 243

0.253

0.09

Milk, yen

457 ± 99

−0.134

0.37

Mineral water, yen

973 ± 299

0.081

0.59