| 70 db | B | A

| 71 db | B | B

| 72 db | | A

| 70 db | B | A

| 70 db | B | A

| 72 db | | A

| 70 db | B | D

| 0 db

| 70 db | | B

| 71 db | | A

| 72 db | B | A

| 71 db | B | B

| 70 db | | B

| 71 db | B | B

| 70 db | | A

| 70 db | | B

| 0 db

| 70 db | B | B

| 71 db | B | D

| 0 db

| 73 db | D | C

| 0 db

| 73 db | D | C

| 73 db | D | C