Years Ended December 31,
(in thousands, except per share data)
2019 (1)
2018 (2)
2017
2016
2015
Income Statement Data (3):
Revenues
$1,614,762
$1,625,687
$1,586,008
$1,460,037
$1,286,340
Income from operations (4)(5)
89,800
63,202
87,042
92,373
94,358
Net income (4)(5)(6)
64,081
48,926
32,216
62,390
68,597
Net Income Per Common Share: (3)(4)(5)(6)
Basic
$1.54
$1.16
$0.77
$1.49
$1.64
Diluted
$1.53
$1.16
$0.76
$1.48
$1.62
Weighted Average Common Shares:
Basic
41,649
42,090
41,822
41,847
41,899
Diluted
41,802
42,246
42,141
42,239
42,447
Balance Sheet Data: (3)(4)(6)(7)
Total assets
$1,415,500
$1,171,967
$1,327,092
$1,236,403
$947,772
Long-term debt
73,000
102,000
275,000
267,000
70,000
Shareholders' equity
874,475
826,609
796,479
724,522
678,680

text: Item 6. Selected Financial Data
text: The following selected financial data has been derived from our consolidated financial statements.
text: The information below should be read in conjunction with “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” and the accompanying Consolidated Financial Statements and related notes thereto.
text: (1) Effective January 1, 2019, the Company adopted new guidance on leases using the modified retrospective method; as such, 2015 – 2018 have not been restated. See Note 3, Leases, of the accompanying “Notes to Consolidated Financial Statements” for further information.
text: (2) Effective January 1, 2018, the Company adopted new guidance on revenue recognition using the modified retrospective method; as such, 2015 – 2017 have not been restated. See Note 2, Revenues, of the accompanying “Notes to Consolidated Financial Statements” for further information.
text: (3) The amounts reflect the results of Symphony, WhistleOut, the Telecommunications Asset acquisition, Clearlink and Qelp since the associated acquisition dates of November 1, 2018, July 9, 2018, May 31, 2017, April 1, 2016 and July 2, 2015, respectively, as well as the related merger and integration costs incurred as part of each acquisition. See Note 4, Acquisitions, of the accompanying “Notes to Consolidated Financial Statements” for further information regarding the Symphony, WhistleOut and Telecommunications Asset acquisitions.
text: (4) The amounts for 2019, 2018 and 2017 include exit costs and impairments of long-lived assets. See Note 5, Costs Associated with Exit or Disposal Activities, and Note 6, Fair Value, of the accompanying “Notes to Consolidated Financial Statements” for further information.
text: (5) The amounts for 2018 include the $1.2 million Slaughter settlement agreement. See Note 22, Commitments and Loss Contingencies, of the accompanying “Notes to Consolidated Financial Statements” for further information.
text: (6) The amount for 2017 includes $32.7 million related to the impact of the 2017 Tax Reform Act. See Note 20, Income Taxes, of the accompanying “Notes to Consolidated Financial Statements” for further information.
text: (7) The Company has not declared cash dividends per common share for any of the five years presented.

Questions:
question: In which years was the Income Statement Data provided for
answer: 2019
2018
2017
2016
2015
question: What is the basic net income per common share in 2019?
answer: $1.54
question: For which items in the table does the amount for 2017 includes the sum related to the impact of the 2017 Tax Reform Act?
answer: Net income
Net Income Per Common Share
Balance Sheet Data
question: In which year was the Diluted Net Income per Common Share largest?
answer: 2015
derivation: 1.62>1.53>1.48>1.16>0.76
question: What was the change in the basic net income per common share in 2019 from 2018?
answer: 0.38
derivation: 1.54-1.16
question: What was the percentage change in the basic net income per common share in 2019 from 2018?
answer: 32.76
derivation: (1.54-1.16)/1.16
scale: percent