| 69 db | B | A

| 70 db | | C

| 72 db | A | B

| 71 db | | C

| 70 db | | C

| 69 db | A | B

| 70 db | B | B

| 71 db | | B

| 71 db | | B

| 71 db | | A

| 70 db | | A

| 72 db | D | D

| 0 db

| 0 db

| 69 db | | C

| 70 db | | A

| 71 db | | A

| 72 db | D | B

| 71 db | | C

| 71 db | | B

| 70 db | | B

| 70 db | | C

| 70 db | B | A

| 69 db | A | A