What Does The Following Liver Function Test Indicate?

Question: I am 31 years old and have been drinking hard since I was 18. I have tapered off over the last 3-5 years a bit from my worst but still have concerns regarding damage to my liver. I routinely get blood work done and the doctors have always said everything looks good. I am specifically worried about my metabolic panel's findings. Specifically my AST and ALT values and the ratio between them. In short I would like a second opinion about my blood work, specifically looking for alcohol related liver damage. Also, based on my blood work, should I still have concerns? (I understand blood work wont reveal everything in every case but in most cases if something is wrong would my blood work alert me?)

Below are my revelevent lab results from 10/2/14
Creatinine 0.90
AST 25
ALT 18
Alkaline Phosphatse 108
Bilirub 0.6
Albumin 5.3
Globulin 2.1
A/G Ratio 2.5
Protein 7.4
carbon dioxide 26
calcium 9.5
Chloriode 98
Potassium 4.0
BUN 13

Below are my metabloic results for July 2013
Sodium     140     135 - 146     mmol/L
Potassium     4.1     3.5 - 5.3     mmol/L
Chloride     101     98 - 110     mmol/L
CO2     25     19 - 30     mmol/L
Glucose     84     65 - 99     MG/DL
BUN     14     7 - 25     MG/DL
Creatinine     0.81     0.60 - 1.35     mg/dL
BUN/Creatinine Ratio     N/A     6 - 22     
Bun/Creatinine ratio is not reported when the BUN
and creatinine values are within normal limits.
CALCIUM     10.1     8.6 - 10.3     MG/DL
Protein, Total     7.7     6.1 - 8.1     G/DL
Albumin     5.3     3.6 - 5.1     G/DL
Globulin     2.4     1.9 - 3.7     G/DL
Albumin/Globulin Ratio     2.2     1.0 - 2.5     
Bilirubin, Total     0.5     0.2 - 1.2     MG/DL
AST (SGOT)     28     10 - 40     U/L
ALT     24     9 - 46     U/L
Alkaline Phosphatase     101     40 - 115     U/L
EGFR     120     > OR = 60     mL/min/1.73m2 XXXXXXX XXXXXXX EGFR     139     > OR = 60     mL/min/1.73m2