2013

2012

2011

Numerator for basic and diluted earnings per share:

Net income

$

5,067,417

$

5,214,973

$

3,699,066

Denominator:

Denominator for basic earnings per share:

Weighted average shares

2,939,684

2,892,956

2,777,820

Effect of dilutive securities:

Employee stock options

54,555

53,647

61,472

Denominator for diluted earnings per share:

Adjusted weighted average shares and assumed conversions

2,994,239

2,946,603

2,839,292

Net income per share:

Basic

$

1.72

$

1.80

$

1.33

Diluted

$

1.69

$

1.77

$

1.30