| 1 | A | B | C | D | E | F |
| --- | --- | --- | --- | --- | --- | --- |
| 2 | List of team payrolls in the NHL - League |  |  |  |  |  |
| 3 | Year | Average team payroll | % change | Standard deviation | Team cap | Player cap |
| 4 | 1998–99 | $29,730,833 | - | $7,375,757 | No cap | No cap |
| 5 | 1999–2000 | $31,564,167 | 6.17% | $9,963,577 | No cap | No cap |
| 6 | 2000–01 | $33,375,943 | 5.74% | $11,657,873 | No cap | No cap |
| 7 | 2001–02 | $38,011,852 | 13.89% | $14,162,670 | No cap | No cap |
| 8 | 2002–03 | $41,939,715 | 10.33% | $16,876,630 | No cap | No cap |
| 9 | 2003–04 | $44,400,490 | 5.87% | $15,898,399 | No cap | No cap |
| 10 | 2004–05 | Season canceled due to lockout | Season canceled due to lockout | Season canceled due to lockout | Season canceled due to lockout | Season canceled due to lockout |
| 11 | 2005–06 | $34,309,972 | 22.73% | $6,371,263 | $39,000,000 | $7,800,000 |
| 12 | 2006–07 | $40,292,446 | 17.44% | $4,720,484 | $44,000,000 | $8,800,000 |
| 13 | 2007–08 | $44,369,521 | 10.12% | $7,573,225 | $50,300,000 | $10,060,000 |
| 14 | 2008–09 | $51,387,176 | 15.82% | $7,968,239 | $56,700,000 | $11,340,000 |
| 15 | 2009–10 | $52,772,060 | 2.69% | $5,541,890 | $56,800,000 | $11,360,000 |
| 16 | 2010–11 | $54,229,043 | 2.76% | $6,758,459 | $59,400,000 | $11,880,000 |
| 17 | 2011–12 | $58,862,833 | 8.54% | $5,563,110 | $64,300,000 | $12,860,000 |

Question: How was the standard deviation of the NHL payrolls affected by the salary cap?
Answer: The standard deviation of the payrolls decreased from $15,898,399 to $6,371,263 after the salary cap was introduced.